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Line L has intercepts a and b on the coo...

Line L has intercepts a and b on the coordinate axes. When the axes are rotated through a fixed given angle keeping the origin fixed, the same line L has intercepts P and q, then

A

`1/p^2+1/q^2`

B

`1/p^2-1/q^2`

C

`p^2+ q^2=1`

D

None

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The correct Answer is:
A
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