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Qn: 48 Consider the lines L1:X-12=y-1=2+31 L2: X-41=y+31=z+32 and the planes P1: 7x+y+27=3, P2:3x+5y-62=4 .Let ax+by+cz=d the equation of the plane passing through the point of intersection of lines Lland L2 and perpendicular to planes P1 and P2 then which the following statements is / are TRUE? A) a+b+c=-4 B) - c+d=15 C) atb+c+d=9 D) a-d=-12 Answer : A B C D Solution