201. The equation of the pair of tangents drawn from the point (0, 1) to the circle x2 + y2 = 1/4 is
(a) x2 - 3y2 + y + 1 = 0 (b) x2 – 3y2 - y - 1 = 0 (c) 3x2 - y2 + 2y +1 = 0
(d) 3x2 - y2 + 2y - 1 = 0
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