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The tangents to x^2+y^2=a^2 having incli...

The tangents to `x^2+y^2=a^2` having inclinations `alpha` and `beta` intersect at P. If `cot alpha + cot beta = 0`, then the locus of P is :

A

x+y=0

B

x-y=0

C

xy=0

D

xy=1

Text Solution

Verified by Experts

The correct Answer is:
C
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