The distance of the z-axis from the image of the point M (2,-3,3) in the plane x-2y-z+1=0, is
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answer is 1.
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Detailed Solution
If the image of point 2,−3,3 in the plane x−2y−z+1=0 is a,b,c then we havea−21=b+3−2=c−3−1=−22−2−3−3+112+−22+−12=−2Hence the image is 0,1,5Distance of image of the point from z−axis is x2+y2=1