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find a*b for the following vector a and b a= 3i -2j +4k b=i +4j -7k

find a*b for the following vector a and b
a= 3i -2j +4k     b=i +4j -7k

Grade:7

1 Answers

Arun
25750 Points
6 years ago
Dear student
 
Cross product
a X b = (3i -2j +4k) X (i +4j -7k)
= 12 k +21 j +2k +14 i +4j -16 i
= -2 i +25 j +14 k
 
Regards
Arun (askIITians forum expert)

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