Find the Directrices of the Ellipse $$144 x ^ { 2 } + 4 y ^ { 2 } = 576$$

question 136

Multiple Choice

Find the directrices of the ellipse.
- $$144 x ^ { 2 } + 4 y ^ { 2 } = 576$$

• A) \(x = \pm \frac { 72 } { \sqrt { 35 } }\)
• B) \(y = \pm \frac { 72 } { \sqrt { 37 } }\)
• C) \(\mathrm { y } = \pm \frac { 72 } { \sqrt { 35 } }\)
• D) \(x = \pm \frac { 6 } { \sqrt { 35 } }\)

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