AP EAMCET Engineering 20 Apr 2019 Shift 2 Paper
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Question : 61 of 160
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If the line joining the points A (2 , 3 , - 1) and B (3 , 5 , - 3) is perpendicular to the line joining C (1 , 2 , 3) and D (3 , y , 7), then r =
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