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The values of m for which the line y =mx...

The values of m for which the line y =mx +2 become a tangent to the hyperbola ` 4x^(2) -9y^(2) =36` is

A

`+- (2)/(3)`

B

`+- (2sqrt(2))/(3)`

C

`+-(8)/(8)`

D

`+-(4sqrt(2))/(3)`

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The correct Answer is:
B
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