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Questions  

 The value of m for which straight line 3x2y+z+3=0=4x3y+4z+1 is parallel to the plane 

2xy+mz2=0 is 

a
-2
b
8
c
-18
d
11

detailed solution

Correct option is A

Vector ((3i^−2j^+k^)×(4i^−3j^+4k^)) is perpendicular to  2i^−j^+mk^. Thus,  3−214−342−1m=0  or  m=−2

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