Question

(sec2 θ – 1) (cosec2 θ – 1) = 1

Answer 1

$\mathfrak{here \: is \: your \: answer} \\ ( { \sec}^{2} \theta - 1)( { \csc}^{2} \theta - 1) = 1 \\ {tan}^{2} \theta \times {cot}^{2} \theta \\ \frac{sin {}^{2} \theta}{cos {}^{2} \theta } \times \frac{cos {}^{2} \theta}{sin {}^{2} \theta} \\ 1$

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Answer 2

Answer:

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