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If the straight line y = 4x + c touches ...

If the straight line y = 4x + c touches the ellipse `(x^(2))/(4)+y^(2)` =1 then c is equal to a)0 b)`pm sqrt(65)` c)`pm sqrt(62)` d)`pmsqrt(2)`

A

0

B

`pm sqrt(65)`

C

`pm sqrt(62)`

D

`pxsqrt(2)`

Text Solution

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The correct Answer is:
B
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