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Which of the following equations in para...

Which of the following equations in parametric form can represent a hyperbola, where `t` is a parameter?

A

`x=(a)/(2)(t+(1)/(t))" and "y=(b)/(2)(t-(1)/(t))`

B

`(tx)/(a)-(y)/(b)=1" and "(x)/(a)+(ty)/(b)+t=0`

C

`x=e^t +e^(-t)" and "y=e^t- e^(-t)`

D

`x^2-6=2 cos t" and "y^2+2=4 cos^2 (t)/(2)`

Text Solution

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The correct Answer is:
A, C, D
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