https://padlet.com/teo_chee_siang_raymond4/2ijtol5efp5dal9d Made with a wish on a star en-us 2021-05-20 03:11:47 UTC 2025-12-02 00:02:21 UTC hello@padlet.com https://padlet.com/teo_chee_siang_raymond4/2ijtol5efp5dal9d/wish/1542286816 Find area bounded by y-axis from 3 to y1, let this region be X.
Let the point where x=2 intersects x -axis be B
Find area of ABOy1
Find area of trapezium ACOy1
Area of shaded region= Area of ABOy1- Area ofACOy1- region X

]]> 2021-05-20 03:38:50 UTC https://padlet.com/teo_chee_siang_raymond4/2ijtol5efp5dal9d/wish/1542286816 https://padlet.com/teo_chee_siang_raymond4/2ijtol5efp5dal9d/wish/1542565024 First sub y=1.5 into eqn of the curve to find X1 and X2. find the area bounded by the curve from X1 to X2 and using the area found subtract the area of the rectangle below by using rectangle formula, 1.5 x (X2-X1)]]> 2021-05-20 05:44:15 UTC https://padlet.com/teo_chee_siang_raymond4/2ijtol5efp5dal9d/wish/1542565024 https://padlet.com/teo_chee_siang_raymond4/2ijtol5efp5dal9d/wish/1542570359 Find Y1 at P and Y2 at Q. Find area bound by curve from Y2 to Y1. Find area bounded by line from Y2 to Y1. Subtract area bound by line from area bound by curve ]]> 2021-05-20 05:46:38 UTC https://padlet.com/teo_chee_siang_raymond4/2ijtol5efp5dal9d/wish/1542570359 https://padlet.com/teo_chee_siang_raymond4/2ijtol5efp5dal9d/wish/1542575018 Find area bound by curve from origin to B and area bound by the line from origin to C. Using area bound by line, subtract area bound by curve]]> 2021-05-20 05:48:40 UTC https://padlet.com/teo_chee_siang_raymond4/2ijtol5efp5dal9d/wish/1542575018 nh21_peh_jia_qian2 https://padlet.com/teo_chee_siang_raymond4/2ijtol5efp5dal9d/wish/1542675027 2021-05-20 06:28:17 UTC https://padlet.com/teo_chee_siang_raymond4/2ijtol5efp5dal9d/wish/1542675027 nh21_peh_jia_qian2 https://padlet.com/teo_chee_siang_raymond4/2ijtol5efp5dal9d/wish/1542676306 2021-05-20 06:28:47 UTC https://padlet.com/teo_chee_siang_raymond4/2ijtol5efp5dal9d/wish/1542676306 nh21_peh_jia_qian2 https://padlet.com/teo_chee_siang_raymond4/2ijtol5efp5dal9d/wish/1542677072 2021-05-20 06:29:04 UTC https://padlet.com/teo_chee_siang_raymond4/2ijtol5efp5dal9d/wish/1542677072 https://padlet.com/teo_chee_siang_raymond4/2ijtol5efp5dal9d/wish/1542766177 2021-05-20 07:01:32 UTC https://padlet.com/teo_chee_siang_raymond4/2ijtol5efp5dal9d/wish/1542766177 https://padlet.com/teo_chee_siang_raymond4/2ijtol5efp5dal9d/wish/1542767400 2021-05-20 07:02:02 UTC https://padlet.com/teo_chee_siang_raymond4/2ijtol5efp5dal9d/wish/1542767400 https://padlet.com/teo_chee_siang_raymond4/2ijtol5efp5dal9d/wish/1542768022 2021-05-20 07:02:17 UTC https://padlet.com/teo_chee_siang_raymond4/2ijtol5efp5dal9d/wish/1542768022 https://padlet.com/teo_chee_siang_raymond4/2ijtol5efp5dal9d/wish/1543146457 2021-05-20 09:42:02 UTC https://padlet.com/teo_chee_siang_raymond4/2ijtol5efp5dal9d/wish/1543146457 https://padlet.com/teo_chee_siang_raymond4/2ijtol5efp5dal9d/wish/1543149861 2021-05-20 09:43:57 UTC https://padlet.com/teo_chee_siang_raymond4/2ijtol5efp5dal9d/wish/1543149861 https://padlet.com/teo_chee_siang_raymond4/2ijtol5efp5dal9d/wish/1543150678 2021-05-20 09:44:22 UTC https://padlet.com/teo_chee_siang_raymond4/2ijtol5efp5dal9d/wish/1543150678 https://padlet.com/teo_chee_siang_raymond4/2ijtol5efp5dal9d/wish/1543180722 2021-05-20 10:01:00 UTC https://padlet.com/teo_chee_siang_raymond4/2ijtol5efp5dal9d/wish/1543180722 https://padlet.com/teo_chee_siang_raymond4/2ijtol5efp5dal9d/wish/1543181312 2021-05-20 10:01:21 UTC https://padlet.com/teo_chee_siang_raymond4/2ijtol5efp5dal9d/wish/1543181312 https://padlet.com/teo_chee_siang_raymond4/2ijtol5efp5dal9d/wish/1543182076 2021-05-20 10:01:47 UTC https://padlet.com/teo_chee_siang_raymond4/2ijtol5efp5dal9d/wish/1543182076 https://padlet.com/teo_chee_siang_raymond4/2ijtol5efp5dal9d/wish/1543263963 Ken]]> 2021-05-20 10:49:01 UTC https://padlet.com/teo_chee_siang_raymond4/2ijtol5efp5dal9d/wish/1543263963 https://padlet.com/teo_chee_siang_raymond4/2ijtol5efp5dal9d/wish/1543274658 Ken]]> 2021-05-20 10:55:28 UTC https://padlet.com/teo_chee_siang_raymond4/2ijtol5efp5dal9d/wish/1543274658 https://padlet.com/teo_chee_siang_raymond4/2ijtol5efp5dal9d/wish/1543380413 2021-05-20 11:50:19 UTC https://padlet.com/teo_chee_siang_raymond4/2ijtol5efp5dal9d/wish/1543380413 https://padlet.com/teo_chee_siang_raymond4/2ijtol5efp5dal9d/wish/1543382730 2021-05-20 11:51:17 UTC https://padlet.com/teo_chee_siang_raymond4/2ijtol5efp5dal9d/wish/1543382730 https://padlet.com/teo_chee_siang_raymond4/2ijtol5efp5dal9d/wish/1543384101 2021-05-20 11:51:56 UTC https://padlet.com/teo_chee_siang_raymond4/2ijtol5efp5dal9d/wish/1543384101 https://padlet.com/teo_chee_siang_raymond4/2ijtol5efp5dal9d/wish/1543422379 Let the y-coordinates of P and Q be y1 and y2 respectively 
Find the area bounded by line y=1.5 from y1 to y2. We call it region A
Find the area bounded by y=1+sin(x/3) from y1 to y2. 
We call it region B
Shaded region= Region B- Region A]]> 2021-05-20 12:06:56 UTC https://padlet.com/teo_chee_siang_raymond4/2ijtol5efp5dal9d/wish/1543422379 https://padlet.com/teo_chee_siang_raymond4/2ijtol5efp5dal9d/wish/1543424456 Ken]]> 2021-05-20 12:07:47 UTC https://padlet.com/teo_chee_siang_raymond4/2ijtol5efp5dal9d/wish/1543424456 https://padlet.com/teo_chee_siang_raymond4/2ijtol5efp5dal9d/wish/1543435060 Let the y coordinate of P be y2, Q be y1
Find the area bounded by graph from 0 to y2. We call this region A
Find the area of triangle of height Py1
Find the area bounded by graph from y1 to 0. We call this region B
Area of shaded region= Region A +(Area of triangle-region B) 

]]> 2021-05-20 12:11:23 UTC https://padlet.com/teo_chee_siang_raymond4/2ijtol5efp5dal9d/wish/1543435060 https://padlet.com/teo_chee_siang_raymond4/2ijtol5efp5dal9d/wish/1543435466 Sub y equals 1.5 into the eqn of the curve to find the x coordinates of the two interception points 
As u have the two coordinates, u can find the area of the rectangle directly underneath the shaded region.
Then u can find the area of the shaded region by subtracting the area of the rectangle directly under the shaded region from the integral of the eqn of the curve from the two x coordinates found]]> 2021-05-20 12:11:32 UTC https://padlet.com/teo_chee_siang_raymond4/2ijtol5efp5dal9d/wish/1543435466 https://padlet.com/teo_chee_siang_raymond4/2ijtol5efp5dal9d/wish/1543439409 Let the origin be O, x-coordinate of B be x1
Find area of triangle AOC
Find area bounded by graph from 0 to x1. We call this region A
Shaded region= Area of triangle AOC-region A

]]> 2021-05-20 12:12:55 UTC https://padlet.com/teo_chee_siang_raymond4/2ijtol5efp5dal9d/wish/1543439409 https://padlet.com/teo_chee_siang_raymond4/2ijtol5efp5dal9d/wish/1543446009 Let y coordinate of P Be y1 and coordinate of Q be (x1,y2). U can find the area of the shaded region on the left hand side of the y axis by intergrating the eqn of the curve from y1 to 0 with respect to y. Than u can make a big triangle, of which the area of the triangle is half times (y1-y2) times x1. Than u can get the area of the shaded region on the right hand side of the y axis by subtracting the intergral of the eqn of the curve from 0 to y2 with respect to y from the area of the big triangle previously found. Than u can find the total area of the shaded region by adding the two areas together]]> 2021-05-20 12:15:15 UTC https://padlet.com/teo_chee_siang_raymond4/2ijtol5efp5dal9d/wish/1543446009 https://padlet.com/teo_chee_siang_raymond4/2ijtol5efp5dal9d/wish/1543460543 2021-05-20 12:19:50 UTC https://padlet.com/teo_chee_siang_raymond4/2ijtol5efp5dal9d/wish/1543460543 nh21_li_wan_lin_phoebe1 https://padlet.com/teo_chee_siang_raymond4/2ijtol5efp5dal9d/wish/1543490365 2021-05-20 12:29:05 UTC https://padlet.com/teo_chee_siang_raymond4/2ijtol5efp5dal9d/wish/1543490365 nh21_li_wan_lin_phoebe1 https://padlet.com/teo_chee_siang_raymond4/2ijtol5efp5dal9d/wish/1543491562 2021-05-20 12:29:28 UTC https://padlet.com/teo_chee_siang_raymond4/2ijtol5efp5dal9d/wish/1543491562 nh21_li_wan_lin_phoebe1 https://padlet.com/teo_chee_siang_raymond4/2ijtol5efp5dal9d/wish/1543492485 2021-05-20 12:29:45 UTC https://padlet.com/teo_chee_siang_raymond4/2ijtol5efp5dal9d/wish/1543492485 https://padlet.com/teo_chee_siang_raymond4/2ijtol5efp5dal9d/wish/1543504081 2021-05-20 12:33:17 UTC https://padlet.com/teo_chee_siang_raymond4/2ijtol5efp5dal9d/wish/1543504081 https://padlet.com/teo_chee_siang_raymond4/2ijtol5efp5dal9d/wish/1543504994 2021-05-20 12:33:34 UTC https://padlet.com/teo_chee_siang_raymond4/2ijtol5efp5dal9d/wish/1543504994 https://padlet.com/teo_chee_siang_raymond4/2ijtol5efp5dal9d/wish/1543505939 2021-05-20 12:33:52 UTC https://padlet.com/teo_chee_siang_raymond4/2ijtol5efp5dal9d/wish/1543505939 https://padlet.com/teo_chee_siang_raymond4/2ijtol5efp5dal9d/wish/1543516012 2021-05-20 12:36:56 UTC https://padlet.com/teo_chee_siang_raymond4/2ijtol5efp5dal9d/wish/1543516012 https://padlet.com/teo_chee_siang_raymond4/2ijtol5efp5dal9d/wish/1543517666 2021-05-20 12:37:25 UTC https://padlet.com/teo_chee_siang_raymond4/2ijtol5efp5dal9d/wish/1543517666 https://padlet.com/teo_chee_siang_raymond4/2ijtol5efp5dal9d/wish/1543519362 2021-05-20 12:37:54 UTC https://padlet.com/teo_chee_siang_raymond4/2ijtol5efp5dal9d/wish/1543519362 https://padlet.com/teo_chee_siang_raymond4/2ijtol5efp5dal9d/wish/1543521559 For Area A, integrate with respect to y axis via manipulation of eqn so that no need to find eqn of line RQ and other shaded areas are found with calculation of area of triangle 

]]> 2021-05-20 12:38:26 UTC https://padlet.com/teo_chee_siang_raymond4/2ijtol5efp5dal9d/wish/1543521559 https://padlet.com/teo_chee_siang_raymond4/2ijtol5efp5dal9d/wish/1543522379 let coordinates of p and q be x1,y1 and x2,y2 respectively
integrate 1+sin(x/3) with respect to x from x1 to x2 to find value (a)
area of shaded region = (a) - area of rectangle pqx2x1]]> 2021-05-20 12:38:41 UTC https://padlet.com/teo_chee_siang_raymond4/2ijtol5efp5dal9d/wish/1543522379 https://padlet.com/teo_chee_siang_raymond4/2ijtol5efp5dal9d/wish/1543529871 to find area A:
integrate x=y^2-3y with respect to y from 0 to y-coordinate of P

to find area B:
find x-intercept of x+y=3 and let that point be R
find area of triangle OPR

to find area C:
integrate x=y^2-3y with respect to y from 0 to y-coordinate of Q

area of shaded region = A + B + C]]> 2021-05-20 12:40:38 UTC https://padlet.com/teo_chee_siang_raymond4/2ijtol5efp5dal9d/wish/1543529871 https://padlet.com/teo_chee_siang_raymond4/2ijtol5efp5dal9d/wish/1543555463 2021-05-20 12:47:22 UTC https://padlet.com/teo_chee_siang_raymond4/2ijtol5efp5dal9d/wish/1543555463 https://padlet.com/teo_chee_siang_raymond4/2ijtol5efp5dal9d/wish/1543561769 find area of triangle AOC to be value (z)

find area under curve:
let  x-coordinate of B be x1
integrate curve AB with respect to x from O to x1

area of shaded region=
(z) - area under curve ]]> 2021-05-20 12:48:58 UTC https://padlet.com/teo_chee_siang_raymond4/2ijtol5efp5dal9d/wish/1543561769 https://padlet.com/teo_chee_siang_raymond4/2ijtol5efp5dal9d/wish/1543575998 2021-05-20 12:52:33 UTC https://padlet.com/teo_chee_siang_raymond4/2ijtol5efp5dal9d/wish/1543575998 https://padlet.com/teo_chee_siang_raymond4/2ijtol5efp5dal9d/wish/1543577682 2021-05-20 12:52:57 UTC https://padlet.com/teo_chee_siang_raymond4/2ijtol5efp5dal9d/wish/1543577682 https://padlet.com/teo_chee_siang_raymond4/2ijtol5efp5dal9d/wish/1543578986 2021-05-20 12:53:16 UTC https://padlet.com/teo_chee_siang_raymond4/2ijtol5efp5dal9d/wish/1543578986 https://padlet.com/teo_chee_siang_raymond4/2ijtol5efp5dal9d/wish/1543581017 2021-05-20 12:53:47 UTC https://padlet.com/teo_chee_siang_raymond4/2ijtol5efp5dal9d/wish/1543581017 https://padlet.com/teo_chee_siang_raymond4/2ijtol5efp5dal9d/wish/1543590286 2021-05-20 12:56:08 UTC https://padlet.com/teo_chee_siang_raymond4/2ijtol5efp5dal9d/wish/1543590286 https://padlet.com/teo_chee_siang_raymond4/2ijtol5efp5dal9d/wish/1543592810 2021-05-20 12:56:47 UTC https://padlet.com/teo_chee_siang_raymond4/2ijtol5efp5dal9d/wish/1543592810 https://padlet.com/teo_chee_siang_raymond4/2ijtol5efp5dal9d/wish/1543595852 2021-05-20 12:57:32 UTC https://padlet.com/teo_chee_siang_raymond4/2ijtol5efp5dal9d/wish/1543595852 https://padlet.com/teo_chee_siang_raymond4/2ijtol5efp5dal9d/wish/1543609126 2021-05-20 13:00:37 UTC https://padlet.com/teo_chee_siang_raymond4/2ijtol5efp5dal9d/wish/1543609126 https://padlet.com/teo_chee_siang_raymond4/2ijtol5efp5dal9d/wish/1543612092 2021-05-20 13:01:22 UTC https://padlet.com/teo_chee_siang_raymond4/2ijtol5efp5dal9d/wish/1543612092 https://padlet.com/teo_chee_siang_raymond4/2ijtol5efp5dal9d/wish/1543615287 2021-05-20 13:02:07 UTC https://padlet.com/teo_chee_siang_raymond4/2ijtol5efp5dal9d/wish/1543615287 https://padlet.com/teo_chee_siang_raymond4/2ijtol5efp5dal9d/wish/1543623838 2021-05-20 13:04:17 UTC https://padlet.com/teo_chee_siang_raymond4/2ijtol5efp5dal9d/wish/1543623838 limjunkai05 https://padlet.com/teo_chee_siang_raymond4/2ijtol5efp5dal9d/wish/1543805188 2021-05-20 13:43:59 UTC https://padlet.com/teo_chee_siang_raymond4/2ijtol5efp5dal9d/wish/1543805188 https://padlet.com/teo_chee_siang_raymond4/2ijtol5efp5dal9d/wish/1543843608 2021-05-20 13:51:55 UTC https://padlet.com/teo_chee_siang_raymond4/2ijtol5efp5dal9d/wish/1543843608 https://padlet.com/teo_chee_siang_raymond4/2ijtol5efp5dal9d/wish/1543880004 2021-05-20 13:59:31 UTC https://padlet.com/teo_chee_siang_raymond4/2ijtol5efp5dal9d/wish/1543880004 https://padlet.com/teo_chee_siang_raymond4/2ijtol5efp5dal9d/wish/1543905694 2021-05-20 14:04:53 UTC https://padlet.com/teo_chee_siang_raymond4/2ijtol5efp5dal9d/wish/1543905694 limjunkai05 https://padlet.com/teo_chee_siang_raymond4/2ijtol5efp5dal9d/wish/1543922041 2021-05-20 14:08:15 UTC https://padlet.com/teo_chee_siang_raymond4/2ijtol5efp5dal9d/wish/1543922041 limjunkai05 https://padlet.com/teo_chee_siang_raymond4/2ijtol5efp5dal9d/wish/1543936707 2021-05-20 14:11:18 UTC https://padlet.com/teo_chee_siang_raymond4/2ijtol5efp5dal9d/wish/1543936707 https://padlet.com/teo_chee_siang_raymond4/2ijtol5efp5dal9d/wish/1544236566 2021-05-20 15:12:48 UTC https://padlet.com/teo_chee_siang_raymond4/2ijtol5efp5dal9d/wish/1544236566 https://padlet.com/teo_chee_siang_raymond4/2ijtol5efp5dal9d/wish/1544284922 2021-05-20 15:22:30 UTC https://padlet.com/teo_chee_siang_raymond4/2ijtol5efp5dal9d/wish/1544284922 https://padlet.com/teo_chee_siang_raymond4/2ijtol5efp5dal9d/wish/1544304790 2021-05-20 15:26:41 UTC https://padlet.com/teo_chee_siang_raymond4/2ijtol5efp5dal9d/wish/1544304790 nh21_lee_jun_tian2 https://padlet.com/teo_chee_siang_raymond4/2ijtol5efp5dal9d/wish/1545507648 area of AOC = 1/2 x b x h 
integrate curve AB
subtract integrated curve from area of AOC ]]> 2021-05-20 20:11:05 UTC https://padlet.com/teo_chee_siang_raymond4/2ijtol5efp5dal9d/wish/1545507648