Double angle identity for sine:


Factorize the left side.

Pythagorean identity:


so that

I think the answer to this question is 18
Answer:
its x=2
Step-by-step explanation:
Answer:
Its the third one
Step-by-step explanation:
Plot all of the points onto the graph, and draw a line through all of the points. It most closely resembles the third one
Answer:
D
Step-by-step explanation:
Paul can type 60 words per minute and Jennifer can type 80 words per minute. Paul typing speed / Jenifer typing speed = 60/80 = 3/4. Paul type 3/4 as fast as Jennifer. Log in for more information.