Use the appropriate​ double-angle formulas to rewrite the numerator and denominator of the expression given below. For the denominator​, use the​ double-angle formula that will produce only one term in the denominator when it is simplified.

1+ Cos2x/ Sin2x = 1+ (____)/____

= _____ / _____

The expression from the previous step then simplifies to cot x using what?

a. Even-Odd Identity
b. Quotient Identity
c. Pythagorean Identity
d. Reciprocal Identity