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If `(cos theta )/(1-sin theta )+(cos theta )/(1+sin theta )=4, 0^@< theta<90^@`, then the value of `(tan theta+ cosec theta)` is:
यदि `(cos theta )/(1-sin theta )+(cos theta )/(1+sin theta )=4, 0^@< theta<90^@`, है, तो `(tan theta+ cosec theta)` का मान क्या होगा ?

A

`(2+sqrt3)/3`

B

`(3+4 sqrt3)/6`

C

`(9+4 sqrt3)/6`

D

`(3+2 sqrt3)/3`

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  11. The value of (sec^2 theta)/(cosec^2 theta)+(cosec^2 theta)/(sec^2 thet...

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  19. If A+B =45^@, then the value of 2(1+ tanA)(1+ tanB) is: यदि A+B =45...

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