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Equation x =acos theta, y =b sin theta (...

Equation `x =acos theta, y =b sin theta (a gt b)` represent a conic section whose eccentricity e is given by

A

`e ^(2) =(a^(2) + b^(2))/(a ^(2))`

B

`e ^(2) = (a^(2)+ b ^(2))/(b ^(2))`

C

`e ^(2) = ( a ^(2) - b^(2))/(a ^(2))`

D

`e ^(2) = (a ^(2) - b ^(2))/(b ^(2))`

Text Solution

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The correct Answer is:
C
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