How do you simplify cottheta/costheta?

2 Answers
Dec 19, 2016

cot theta/cos theta = csc theta

Explanation:

cot theta/cos theta = 1/tan theta * 1/cos theta

= cos theta/sin theta * 1/cos theta

= cancel cos theta/sin theta * 1/cancel cos theta = 1/sin theta

= csc theta

Dec 19, 2016

csc(theta)

Explanation:

We have: (cot(theta)) / (cos(theta))

First, let's apply the standard trigonometric identity cot(theta) = (cos(theta)) / (sin(theta)):

= ((cos(theta)) / (sin(theta))) / (cos(theta))

= (cos(theta)) / (sin(theta) cos(theta))

= (1) / (sin(theta))

Then, let's apply the identity csc(theta) = (1) / (sin(theta))

= csc(theta)