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