English

`(Sec^2 Theta-1) Cot ^2 Theta=1`

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Question

`(sec^2 theta-1) cot ^2 theta=1`

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Solution

LHS = `(sec^2 theta -1 ) cot^2 theta`

       =`tan^2theta  xx cot^2 theta       (∵ sec^2 theta - tan^2 theta =1)`

     =`1/(cot^2theta) xx cot^2 theta`

    =1

    =RHS

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Chapter 13: Trigonometric identities - Exercises 1

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R.S. Aggarwal Mathematics [English] Class 10
Chapter 13 Trigonometric identities
Exercises 1 | Q 2.1
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