Question

Question #2abb6

Answer 1

Prove trig expression.

Explanation:

Develop second side of the equation:
`(csc t + cot t)^2 = (1/sin t + cos t/(sin t))^2 = (1 + cos t)^2/(sin^2 t) =`
`= (1 + cos t)^2/(1 - cos^2 t) = (1 + cos t)^2/((1 - cos t)(1 + cos t)) =`
`= (1 + cos t)/(1 - cos t)`