If the lines represented by the equation...

If the lines represented by the equation `2x^2-3xy+y^2=0` make angles `alpha` and `beta`
with X-axis, then `cot^2alpha+cot^2beta` is equal to

A

(a) 0

B

(b) `3/2`

C

(c) `7/4`

D

(d) `5/4`

Verified by Experts

The correct Answer is:

D

NA

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