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| 1. |
The equation of a hyperbola, whose foci are (5, 0) and (?5, 0) and the length of whose conjugate axis is 8, is |
| A. | \[9{{x}^{2}}-16{{y}^{2}}=144\] |
| B. | \[16{{x}^{2}}-9{{y}^{2}}=144\] |
| C. | \[9{{x}^{2}}+16{{y}^{2}}=144\] |
| D. | \[16{{x}^{2}}-9{{y}^{2}}=12\] |
| Answer» C. \[9{{x}^{2}}+16{{y}^{2}}=144\] | |