Tan(x) = sin(x) / cos(x)
Csc(x) = 1/ sin(x)
You'll see this better if I use latex.

Now just cancel numerators with denominations. They all disappear. The cancelations leave 1 on both the numerator and denominator.
I say it’s c it makes the most sense to me
<h3>Hello there!</h3><h3>Answer: 1/13</h3>
1/13 would represent the amount of bananas in the basket.
There would be only 1 banana because it would complete he amount of fruits in the basket.
In the basket, we know that there are:
1 orange + 5 apples + 4 kiwis + 2 pears = 12
That would be 12 fruits, but there are suppose to be 13 fruits, which means that the remaining 1 fruit would be a banana.
So, that means that the amount of bananas in the basket is 1 out of 13, or 1/13.
<h3>I hope this helps!</h3><h3>Best regards,</h3><h3>MasterInvestor</h3>
True the circle is a congruent to the radius of an inscribed regular polygon inside the circle