Failed to connect to MySQL: Access denied for user 'examnext_online'@'localhost' (using password: YES) If the angle between tangents drawn to `x^2+y^2 –2x –4y+1=` 0 at the points where it is cut by the line y = 2x + c, is `pi/ 2`, then - Sarthaks eConnect
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If the angle between tangents drawn to `x^2+y^2 –2x –4y+1=` 0 at the points where it is cut by the line y = 2x + c, is `pi/ 2`, then

If the angle between tangents drawn to `x^2+y^2 –2x –4y+1=` 0 at the points where it is cut by the line y = 2x + c, is `pi/ 2`, then

A.

`|c|=sqrt5`

B.

`|c|=2sqrt5`

C.

`|c|=sqrt10`
D.

`|c|=2sqrt10`

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