Question

Simplify cos θ sec θ.

Answer 1

Cot(x)=cos(θ)/sin(θ) and sec(θ)=1/cos(θ)

Therefore: cot(θ)*sec(θ)= (cos(θ)/sin(θ))*(1/cos(θ))= 1/sin(θ)= csc(θ)

Answer 2

Here you go :) ......