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Questions  

The equation of a curve referred to the new axes when the origin shifted to (4,5)  without  changing the direction of axes is X2+Y2=36 then the equation of the curve with reference to the original axes

a
x2+y2-8x-10y-5=0
b
x2+y2-8x-10y+5=0
c
x2+y2-8x+10y+5=0
d
x2+y2+8x-10y+5=0

detailed solution

Correct option is B

Given transformed equation of the curve as X2+Y2=36  Substitute X=x-4, Y=y-5  x-42+y-52=36 x2+y2-8x-10y+16+25=36 x2+y2-8x-10y+41=36 x2+y2-8x-10y+5=0

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