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Choose the correct alternative. The equ...

Choose the correct alternative.
The equation(s) of the tangent(s) to the circle `x^2 y^2 =4` which are parallel to the `x+2y+3=0` are

A

`x-2y=2`

B

`x+2y=pm2\sqrt{3}`

C

`x+2y=pm 2\sqrt{5}`

D

`x-2y =pm 2\sqrt{5}`

Text Solution

Verified by Experts

The correct Answer is:
C
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