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The graph of the conic x^(2)-(y-1)^(2)=1...

The graph of the conic `x^(2)-(y-1)^(2)=1` has one tangent line with positive slope that passes through the origin. The point of tangency being (a, b).
Q. If e be the eccentricity of the conic, then the value of `(1+e^(2)+e^(4))` is

A

`3`

B

`7`

C

`(7)/(4)`

D

`21`

Text Solution

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The correct Answer is:
B
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