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If the planes ax+by+cz+d=0anda(1)x+b(1)y...

If the planes `ax+by+cz+d=0anda_(1)x+b_(1)y+c_(1)z+d_(1)=0` be mutually perpendicular , then

A

`(a)/(a_(1))=(b)/(b_(1))=(c)/(c_(1))`

B

`(a)/(a_(1))=(b)/(b_(1))=(c)/(c_(1))=0`

C

`aa_(1)+b b_(1)+c c_(1)=1`

D

`aa_(1)+b b_(1)+c c_(1)=0`

Text Solution

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The correct Answer is:
D
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