यदि ((1)/(1 +cosec theta) - (1)/(1-cosec...

यदि `((1)/(1 +cosec theta) - (1)/(1-cosec theta)) cos theta = 2, 0^(@) lt theta lt 90^(@)`, है, तो `sin^(2)theta + cot^(2)theta + sec^(2)theta` का मान है :

A

1

B

`2(1)/(2)`

C

`3(1)/(2)`

D

2

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The correct Answer is:

C

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