Q.
The equation of the plane passing through the point (1,1,1) and perpendicular to the planes 2x+y-2z=5 and 3x-6y-2z=7, is
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a
−14x+2y+15z=3
b
14x−2y+15z=27
c
14x+2y−15z=1
d
14x+2y+15z=31
answer is D.
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Detailed Solution
ax−1+by−1+cz−1=02a+b−2c=0,3a−6b−2c=0a−14=+b−2=c−15a:b:c=14:2:1514x+2y+15z=14+2+15=31
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