If the plane passes through the midpoint of the line joining the centres of the…

MATHEMATICS · Numerical · ISC · Mathematics · Three-Dimensional Geometry · Three-Dimensional Geometry

Problem

If the plane 2ax−3ay+4az+6=02ax-3ay+4az+6=0 passes through the midpoint of the line joining the centres of the spheres x2+y2+z2+6x−8y−2z=13x^2+y^2+z^2+6x-8y-2z=13 and x2+y2+z2−10x+4y−2z=8x^2+y^2+z^2-10x+4y-2z=8, then aa equals

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