CircleHard

Question

If a circle passing through the point (−1, 0) touches y-axis at (0, 2), then the length of the chord of the circle along the x-axis is :

Options

A.3/2
B.3
C.5/2
D.5

Solution


(h + 1)2 + 22 = h2
⇒ 2h + 5 = 0
h = - 5/2
AB = 2(AM) = 2
= 2 = 3

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