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Eliminating the parameter α, will get the locus of the centroid of the triangleThe centroid of the triangle is cosα+sinα+13,sinα-cosα+23=x,y(3x-1)=cosα+sinα(3y-2)=sinα-cosα(3x-1)2+(3y-2)2=2cos2α+sin2αTalk to our academic expert!
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A line L cuts the sides AB, BC of ABC in the ratio 2 : 5, 7 : 4 respectively. Then the line L cuts CA in the ratio
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