For what value of m ,the
vecto A = 2 i^ +3 j^ - 6 k^is
perpendicular to vector B= 3 in
- mj^ + 6 k^.
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Answer:
For two vectors to be perpendicular-
a.b=0
⟹(2i+mj−3k).(i−2j+k)=0
⟹2−2m−3=0
⟹m=
2
−1
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