AP EAMCET Engineering 25 Apr 2017 Shift 1 Paper
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Question : 47 of 160
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If the pair of lines 2 x 2 + 3 x y + y 2 = 0 makes angle θ 1 and θ 2 with the positive direction of the X-axis, then | t a n ( θ 1 − θ 2 ) | =
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