Question

Please help! Cant quite figure out what I’m supposed to do to solve this

Answer 1

Answer:

A

Step-by-step explanation:

To answer this question, we can use the following co-function identity:

$\sin(\theta)=\cos(90\textdegree-\theta)$

We know that sin(21°) is 0.36. This means that:

$0.36=\sin(21\textdegree)=\cos(90\textdegree-21\textdegree)$

Subtract within the cosine:

$0.36=\sin(21\textdegree)=\cos(69\textdegree)$

We can remove our second term:

$\cos(69\textdegree)=0.36$

So, our answer is A.

And we're done!

Answer 2

the answe is A) to this equation