Question

find the value of:(sec^2thetta-1)(cosec^2thetta-1)
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Answer 1

Answer:

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Step-by-step explanation:

(sec

2

θ−1)(1−csc

2

θ)=(tan

2

θ)(−cot

2

θ)=−1

( as sec

2

θ−tan

2

θ=1⇒sec

θ

−1=tan

2

θ)

(as csc

2

θ−cot

2

θ=1⇒1−csc

2

θ=−cot

2

θ)

( as cot

2

θ=

tan

2

θ

1

)