A common tangent to the circle x2 + y2 = 16 and an ellipse x2 / 49 + y2 / 4 = 1

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Question

A common tangent to the circle x2 + y2 = 16 and an ellipse x2 / 49 + y2 / 4 = 1 is

Options:

A . y = x + 4v5

B . y = x + v53

C . y= x + z

D . None of these

Answer: Option D

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