Answer:
<h2>The answer is option C</h2>
Step-by-step explanation:

Using trigonometric identities
That's

Rewrite the expression
That's

Simplify
We have

So we have
3( - 1)
We have the final answer as
<h2>- 3</h2>
Hope this helps you
Answer:
3
Step-by-step explanation:
I don’t know if I’m 100% correct but I got
Exact form x= 103/5
Decimal form x=20.6