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

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

none

Text Solution

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The correct Answer is:
C
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DIPTI PUBLICATION ( AP EAMET)-CIRCLE-Exercise 1B(Circle-Line)
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