Find ' m ' if A = 4i + 5 j + 2k and B = mi + 2 j+ k are perpendicular to each other .
Answers
Answered by
1
The value of m according to me is 3.
Answered by
1
A=2i+2j+3k
B=3i+6k+nk
A.B=(2i+2j+3k).(3i+6k+nk)=0
= 6+18+3n=0
= 24+3n=0
= 3n=-24
= n=-8
B=3i+6k+nk
A.B=(2i+2j+3k).(3i+6k+nk)=0
= 6+18+3n=0
= 24+3n=0
= 3n=-24
= n=-8
Similar questions