Find the Foci of the Ellipse $$81 x ^ { 2 } + 36 y ^ { 2 } = 2916$$

question 265

Multiple Choice

Find the foci of the ellipse.
- $$81 x ^ { 2 } + 36 y ^ { 2 } = 2916$$

• A) \(( 0 , \pm 9 )\)
• B) \(( 0 , \pm 6 )\)
• C) \(( \pm 3 \sqrt { 5 } , 0 )\)
• D) \(( 0 , \pm 3 \sqrt { 5 } )\)

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