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Question

The vertices of the ellipse (x+2)216+(y2)225=1 are:

A
(2,7),(2,3)
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B
(4,3),(6,3)
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C
(5,3),(7,3)
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D
(6,3),(8,3)
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Solution

The correct option is D (2,7),(2,3)
We know vertices of standard ellipse x2a2+y2b2=1 are

(x,y)=(±a,0) if a>b and (x,y)=(0,±b) if b>a

Hence vertices of ellipse (x+2)216+(y2)225=1 are

(x+2,y2)=(0,±5)

(x,y)=(2,2±5)

Vertices (2,2±5)=(2,7),(2,3)

Hence option 'A' is correct choice.

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