:) If a = 2î - 3ị and B = 4 +then a.bis :
(a) -5
(b) 5
(c) 11
(d)-11
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Answered by
2
Answer:
It is given that,
a=2i-3j
b=4i+j
a.b=(2i-3j).(4i+j)
a.b=8-3=5
option B is the answer.....
Step-by-step explanation:
hope it helps you....
Answered by
0
Step-by-step explanation:
a=2i-3j
b=4j+j
a.b=(2i-3j).(4j+j)
a.b=8-3=5
option b is the right answer
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