The coordinates of A B C are (6,3) (-3,5) (4,-2) respectively and P(x,y) is any point , prove that ΔPBC/ΔABC = x+y-2/7
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Points are given find the area of triangle ABC
ΔABC =49/2
similerl find the area of triangle PBC
ΔPBC = |7x+7y-14|/2
so ΔPBC /ΔABC =|x+y-2|/7
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If A, B, C, D are the angles of a cyclic quadrilateral, then cos A cos B cos C cos D + ++ =
[EAMCET 2001]
[EAMCET 2001]
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