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The chrods of contact of the pair of tan...

The chrods of contact of the pair of tangents to the circle `x^(2)+y^(2)=1` dravwm from any point on the line 2x+y=4 paas through the point `(alpha,beta)` then find `alpha and beta`.

A

`( 1//2, 1//4)`

B

`( 1//4, 1//2)`

C

`( 1, 1//2)`

D

`( 1//2, 1 )`

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The correct Answer is:
A
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