यदि 7cos^(2)theta + 3 sin^(2)theta=4 और ...

यदि `7cos^(2)theta + 3 sin^(2)theta=4` और `0 lt theta lt pi/2` तो `tan theta` का मान क्या है ?

A

A)`sqrt(7)`

B

B)`7/3`

C

C)3

D

D)`sqrt(3)`

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