Answer:
hello
Step-by-step explanation:
I'm new I'm just figuring this out
Answer:
320/4=8 8 tens /4 tens =2
Step-by-step explanation:
Answer:
A
Step-by-step explanation:
sorry I don't kwon how to put it in, in explaination
Answer:
D
Step-by-step explanation:
Step-by-step explanation:
We know that tan=sin/cos, so tan(x+π/2)=

Then, we know that sin(u+v)=sin(u)cos(v)+cos(u)sin(v),
so our equation is then
Then, cos(u+v)=cos(u)cos(v)-sin(u)sin(v), so our expression is then
