(1 + cosec θ) (1 – cosec θ) + cot2 θ is _____
(1 + cosec θ) (1 – cosec θ) + cot2 θ is _____ Correct Answer 0
(1 + cosec θ) (1 – cosec θ) + cot2 θ = (1 – cosec2 θ) + cot2 θ = -cot2 θ + cot2 θ (∵ cosec2 A – cot2 A = 1) = 0(1 + cosec θ) (1 – cosec θ) + cot2 θ is _____ Correct Answer 0
(1 + cosec θ) (1 – cosec θ) + cot2 θ = (1 – cosec2 θ) + cot2 θ = -cot2 θ + cot2 θ (∵ cosec2 A – cot2 A = 1) = 0