The value of \frac{ \sin ⁡\theta \: + \:\cos\theta −1}{ \sin ⁡\theta −\cos\theta \: + \:1} \times {\tan ^{2}\theta (cosec^{2}\theta −1) }/{\sec\theta −\tan\theta } is:

SSC CGL Tier II Quant 13 Sep 2019 Paper

Question : 43 of 100

Marks: +1, -0

The value of

\;{\ sin\;⁡θ\;\:\;+\;\:cosθ\;−1}/{\ sin\;⁡θ\;−cosθ\;\:\;+\;\:1} × \;{\tan\;^{2}θ\;\;(cosec^{2}θ\;−1)\;}/{secθ\;−tanθ\;}

is:

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