Hm.. That's a hard one is the answer..10??
<u>Given</u>:
The given equation is 
We need to determine the approximate value of q.
<u>Value of q:</u>
To determine the value of q, let us solve the equation for q.
Hence, Subtracting
on both sides of the equation, we get;

Subtracting both sides of the equation by 2q, we have;

Dividing both sides of the equation by -1, we have;

Now, substituting the value of
, we have;

Subtracting the values, we get;

Thus, the approximate value of q is 0.585
Hence, Option C is the correct answer.
LHS: =

(using

)
We know

so we can replace the sin²x in the LHS expression as follows

which is the RHS.
X = 170/11
H0P3 It H3LPS :)