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The locus of the point whose distance from the origin is twice its distance from theplane 2x -y+7 0 is |
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Answer» √(x^2+y^2)=2*(2x-y+7)/√5x^2 + y^2=4/5 *(4x^2+y^2+40-14y-2*(2x)(y-7))5x^2+5y^2=4x^2+y^2-14y-4xy+28y+40x^2+4y^2+14y+4xy-28y-40=0 |
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