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Janusz
办美国文凭加拿大文凭澳洲文凭英国文凭学位证毕业证成绩单
Veinas bọt EPE máy móc
Wendy Ye
One Two | Numbers 1 to 10 | Learn to write and count from 1 to 10 | #numbers #numbers1to10 #one
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3 hours ago
One Two | Numbers 1 to 10 | Learn to write and count from 1 to 10 | #numbers #numbers1to10 #one
![[PB] Donkey Kong Country 2 Any% in 39:40](http://i.ytimg.com/vi/n6h1VdYNqvs/mqdefault.jpg "[PB] Donkey Kong Country 2 Any% in 39:40")
![Let A=[[ 1 2 -1; 2 1 4 ]], B=[\\\\beginarr…](http://i.ytimg.com/vi/_RKSt51IZAY/mqdefault.jpg "Let A=[[ 1 2 -1; 2 1 4 ]], B=[\\\\beginarr…")
![Prove that |[1 +a^2 -b^2, 2ab, -2b],[2ab, 1-a^2 +b^2, 2a],[2b, -2a, 1-a^2 -b^2]| = (1 + a^2 + b^2)^3](http://i.ytimg.com/vi/B7UwIYXEcX8/mqdefault.jpg "Prove that |[1 +a^2 -b^2, 2ab, -2b],[2ab, 1-a^2 +b^2, 2a],[2b, -2a, 1-a^2 -b^2]| = (1 + a^2 + b^2)^3")
