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Tangents are drawn to x^(2)+y^(2)=16 fr...

Tangents are drawn to `x^(2)+y^(2)=16` from the point P(0,h) These tangents meet the x- axis at A and B . If the area of triangle P AB is minimum , then

A

`x^2+y^2=6 sqrt(2)`

B

`x^(2)+y^(2)=64`

C

`x^2+y^2=32`

D

`x^2+y^2=4sqrt(2)`

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The correct Answer is:
C
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