If 7 sin^2 theta +3 cos^2 theta = 4,...

If 7 `sin^2 theta +3 cos^2 theta = 4,` and `theta` is a positive acute angle, then tan `theta `is equal to

A

`1/3`

B

`1/7`

C

`1/(sqrt(3))`

D

`sqrt(3)`

Verified by Experts

The correct Answer is:

C

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