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If the lines represented by sin^(2)alpha...

If the lines represented by `sin^(2)alpha(x^(2)+y^(2))=((cosalpha)x-(sinalpha)y)^(2)` are perpendicular to each other, then `alpha=`

A

`0`

B

`(pi)/(3)`

C

`(pi)/(2)`

D

`(pi)/(4)`

Text Solution

Verified by Experts

The correct Answer is:
D
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