If cosec θ + cot θ = x; what is the value of cosecθ.cotθ ?
Answer & explanation
Correct answer: option 1
cosec θ + cot θ = x
⇒ cosec θ - cot θ = \(\frac{1}{x}\)
4cosecθ.cotθ = (cosecθ + cotθ)2 - (cosecθ - cotθ)2
⇒ 4cosecθ.cotθ = x2 - \(\frac{1}{x^2}\)
⇒ cosecθ.cotθ = \(\frac{1}{4}\)(x2 - \(\frac{1}{x^2}\))