Hằng đẳng thức by phúc nguyễn https://padlet.com/nguyentienphuck38bspt/l19ot6a972k1vze5 Bài 2 en-us 2021-08-20 02:38:39 UTC 2025-05-23 17:00:58 UTC hello@padlet.com nguyentienphuck38bspt https://padlet.com/nguyentienphuck38bspt/l19ot6a972k1vze5/wish/1816419289 2021-10-14 08:32:46 UTC https://padlet.com/nguyentienphuck38bspt/l19ot6a972k1vze5/wish/1816419289 nguyentienphuck38bspt https://padlet.com/nguyentienphuck38bspt/l19ot6a972k1vze5/wish/1819212713 số phần tử của tập A là:
2021 - 1 + 1 = 2021
vậy tập A có 2021 phần tử

]]> 2021-10-15 08:47:54 UTC https://padlet.com/nguyentienphuck38bspt/l19ot6a972k1vze5/wish/1819212713 X-2=X+2 https://padlet.com/nguyentienphuck38bspt/l19ot6a972k1vze5/wish/1819232729 X=2+2
X=4
X=4-2
X=2]]> 2021-10-15 09:02:07 UTC https://padlet.com/nguyentienphuck38bspt/l19ot6a972k1vze5/wish/1819232729 https://padlet.com/nguyentienphuck38bspt/l19ot6a972k1vze5/wish/1819234137 2021-10-15 09:03:09 UTC https://padlet.com/nguyentienphuck38bspt/l19ot6a972k1vze5/wish/1819234137 X:2=x:4 https://padlet.com/nguyentienphuck38bspt/l19ot6a972k1vze5/wish/1819236694 X=4:2 x=2 vậy, tập hợp d có 1 phần tử]]> 2021-10-15 09:04:57 UTC https://padlet.com/nguyentienphuck38bspt/l19ot6a972k1vze5/wish/1819236694 nguyentienphuck38bspt https://padlet.com/nguyentienphuck38bspt/l19ot6a972k1vze5/wish/1819240749 2021-10-15 09:08:00 UTC https://padlet.com/nguyentienphuck38bspt/l19ot6a972k1vze5/wish/1819240749 nguyentienphuck38bspt https://padlet.com/nguyentienphuck38bspt/l19ot6a972k1vze5/wish/1819242024 2021-10-15 09:08:46 UTC https://padlet.com/nguyentienphuck38bspt/l19ot6a972k1vze5/wish/1819242024 nguyentienphuck38bspt https://padlet.com/nguyentienphuck38bspt/l19ot6a972k1vze5/wish/1819247130 2021-10-15 09:12:14 UTC https://padlet.com/nguyentienphuck38bspt/l19ot6a972k1vze5/wish/1819247130 nguyentienphuck38bspt https://padlet.com/nguyentienphuck38bspt/l19ot6a972k1vze5/wish/1819256456 2021-10-15 09:18:38 UTC https://padlet.com/nguyentienphuck38bspt/l19ot6a972k1vze5/wish/1819256456