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The curve represented by x=a(cosh theta+...

The curve represented by `x=a(cosh theta+sinh theta), y=b(cosh theta-sinh theta)` is

A

a hyperbola

B

an cllipse

C

a parabola

D

a circle

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The correct Answer is:
A
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  14. The product of the perpendicular from any poitn P(x,y) on the hyperbol...

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