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If the pair of lines b^(2) x^(2)-a^(2) y...

If the pair of lines `b^(2) x^(2)-a^(2) y^(2)=0` are inclined at an angle `theta` then the eccentricity of the hyperbola `(x^(2))/(a^(2))-(y^(2))/(b^(2))=1` is

A

1)`sec theta`

B

2)`cos theta`

C

3)`cos (theta)/(2)`

D

4)`sec ((theta)/(2))`

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The correct Answer is:
D
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