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The equation x^2 / (12-k) + y^2 /(8-k) ...

The equation ` x^2 / (12-k) + y^2 /(8-k) = 1` represents a hyperbola if

A

a hyperbola is `k lt 8`

B

an ellipse if `k gt 8`

C

a hyperbola if `8 lt k lt 12`

D

None of these

Text Solution

Verified by Experts

The correct Answer is:
C
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