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The st. line y = 4x + c touches the hype...

The st. line y = 4x + c touches the hyperbola `x^2-y^2=1` if .

A

c = 0

B

`c = pm sqrt2`

C

`c = pm sqrt15`

D

`c = pm sqrt17`

Text Solution

Verified by Experts

The correct Answer is:
C
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