The line Ax + By + C = 0 will touch the circle x2 + y2 = 2 when
(A) C2 = 2(A? + B2)
(B) A2 = 2(B2 + C2)
(C) B2 = 2(A2 + C2)
(D) none of these
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Answer:
option a is the correctaans mate
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