ANSWER

EXPLANATION
The given problem is

This is defined if and only if

Even the given expression can be simplified to obtain:

The exclusion is

Answer:

Step-by-step explanation:
Use cosine:

We have

and the angle 17°.

Substitute:
<em>convert the decimal to the fraction</em>
<em>cross multiply</em>
<em>divide both sides by 9563</em>


42 :6 to the second power is 36 plus 6 is 42
76.
If the number after the decimal is below five, you round down. If the number is above five, you round up. 76 is your answer.