Answer:
it blury put a better one pls
Step-by-step explanation:
Answer: number of pages is going by 10. The number of minutes is multiplying 2 times.
Step-by-step explanation:
To find the COP use an in book resource or search it pretty simple
The double angle formula for the sine is

The right hand side is exactly your expression, where 
So, rewriting the expression from right to left, we have

Don't know try something else it will probably help