give the correct answer....
1.if A'= icap + 2jcap - 3kcap and B'= 2icap - jcap + k cap. find A' *B'
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Answer:
hi
Explanation:
a= 1i + 2j
b= 3i + 4i= 7i
Dot product
= a.b = (1i +2j) (7i)
=> a.b = 1.7 (i.i) + 2.7 (i.j)
Since i.i= 1 and i.j=0
=> a.b = 7*1 + 14*0
=> a.b = 7
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