99
$(\sec^2\theta - 1) (\text{cosec}^2\theta - 1)$ is equal to :
- (a)$-1$
- (b)$1$
- (c)$0$
- (d)$2$
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(b) $1$
( 2θ - 1) (cosec2θ - 1) is equal to :
CBSE Class 10 Maths PYQ · Trigonometry · Find Value using Identities · 1 Mark · March 2023 · Standard
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