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3(cot^2 theta-cos^2 theta)= cos^2 theta,...

`3(cot^2 theta-cos^2 theta)= cos^2 theta, theta^@< theta<90^@`, then the value of `(tan^2 theta+ cosec^2 theta+sin^2 theta)` is
यदि `3(cot^2 theta-cos^2 theta)= cos^2 theta, theta^@< theta<90^@` है, तो `(tan^2 theta+ cosec^2 theta+sin^2 theta)` का मान हैः

A

`13/3`

B

`61/12`

C

`25/12`

D

`15/4`

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CHAMPION PUBLICATION-2018 TIER-II PAPER(5)-EXERCISE
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