# data[].attributes.body
2. No it's incorrect. It should be -sin 80.

# data[].attributes.body
it's wrong because it was subtracted from the y-axis and not the x-axis, the answer should be -sin180

# data[].attributes.body
the reference angle is not 10 degrees it is 80 degrees. the -sin is correct.

# data[].attributes.body
The reference angle must go to 180 or 0, 270 is a y-axis measure

# data[].attributes.body
no it's supposed to be - sin

# data[].attributes.body
-Amarye

# data[].attributes.body
Yes, it's done correctly, because it's in the 3rd Quad.

# data[].attributes.body
It's in quadrant 3 and the cos is -

# data[].attributes.body
the negative goes in front of -cos20 because cos200 falls in the 3rd quadrant where cos is negative.

# data[].attributes.body
it has a negative x based on cos 200 falling in the 3rd quadrant

# data[].attributes.body
because depending on what quadrant 200 was in

# data[].attributes.body
because of the x in the III

quadrant

# data[].attributes.body
incorrect, because the reference angle must go to 180.

# data[].attributes.body
the reference angle is 20 degrees which falls in the third quadrant where the cos is negative.

# data[].attributes.body
1.) You put the negative infront of the Cos 200 because it is in the 3rd quadrant which the x axis is negative.

2.) No, it is not correct. It should be -sin 80.

# data[].attributes.body
1. Because cos 200 is in the 3rd quadrant.

2. No it should be -Sin 80.

# data[].attributes.body
it is in the third quadrant

# data[].attributes.body
200 degrees falls in the 3rd quadrant

# data[].attributes.body
because cos at 200 is negative

# data[].attributes.headline
This is done correctly.   cos 200 = - cos 20

# data[].attributes.subject
This is done correctly.   cos 200 = - cos 20

# data[].attributes.body
How did I know to put the - in front of cos 20?

# data[].attributes.body
Did I do this correctly? If not, what did I do wrong?