1 thousand and 1 hundred means 1100.
In scientific notation, it's 1.1*10^3
I think the first one is ( C :3 ) and the other one is B 2
It is commutative property of multiplication
Answer:
true
Step-by-step explanation:
sinA² + cosA²=1
⇔(1/2)² + cosA²=1
⇔cosA=±(√3/2)