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If A = 3i+4j and B = ai +3j are perpendicular to each other. The value of a is :-
(A) 4
(B) 4
(C)-3
(D)3
Answers
Answered by
1
a=-4 . hope you understand please mark brainliest.
Answered by
0
Dot product of perpendicular vectors is 0:
A.B=0
3a+12=0
a=-4
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