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Weekly Test :Pairs of Straight Lines

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The image of the air of lines represented by ax power 2 add 2 hxy add by power 2 equal 0 by the line mirror y equal 0 isTwo of the straight lines given by 3x power 3 add 3x power 2 y subtract 3xy power 2 add by power 3 equal 0 are at right angles, ifEquation of pair of straight lines drawn through Brackets 1, 1 and perpendicular to the pair of lines 3x square 2 subtract 7xy subtract 2y square 2 equal 0 isTwo points A and B have co-ordinate Brackets 1,2 and Brackets 3, 2 respectively. The co-ordinates of a point distint root 85 from B on the line through B perpendicular to AB areThe triangle formed by x square subtract 3y square equal 0 and x equal 4 is
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