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The length of the major axis of the elli...

The length of the major axis of the ellipse `(5x-10)^2 +(5y+13)^2 = (3x-4y+7)^2/4` is

A

`(10)/(3)` units

B

`(10)/(sqrt3)` units

C

`(20)/(3)` units

D

`(5)/(sqrt3)` units

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The correct Answer is:
D
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