If the angle theta is acute, then the ac...

If the angle `theta` is acute, then the acute angle between
`x^(2)(cos theta-sin theta)+2xy cos theta+y^(2)(cos theta+sin theta)=0,` is

A

(a) `2 theta`

B

(b) `(theta)/3`

C

(c) `theta`

D

(d) `(theta)/2`

Verified by Experts

The correct Answer is:

C

NA

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