If the planes \[3x-2y+2z+17=0\]and \[4x+3y-kz=25\] are mutually perpendicular , then \[k=\] [MP PET 1995]

If the planes \[3x-2y+2z+17=0\]and \[4x+3y-kz=25\] are mutually perpen

1.	If the planes \[3x-2y+2z+17=0\]and \[4x+3y-kz=25\] are mutually perpendicular , then \[k=\] [MP PET 1995]
A.	3
B.	? 3
C.	9
D.	? 6
Answer» B. ? 3

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If the planes \[3x-2y+2z+17=0\]and \[4x+3y-kz=25\] are mutually perpendicular , then \[k=\] [MP PET 1995]

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