Question

(sec^2 theta- 1) (cosec^2theta -1).Evaluate this.
Please help​

Answer 1

$(sec^{2} ∅ - 1)(cosec^{2} ∅ - 1) = ?$

$\huge\tt\underline\purple{Solution:-}$

$(sec^{2}∅ - 1)(cosec^{2}∅ - 1 ) \\ = \: tan^{2} ∅ \times cot^{2}∅ \\ = tan ^{2} ∅ \times \frac{1}{tan ^{2} ∅} \\ = 1$

__________________________

Answer 2

Answer is 1 ...,.......