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find the projection of vector A=2i-8j+k in direction of vector B=3i-4j-12k ans. 2

find the projection of vector A=2i-8j+k in direction of vector B=3i-4j-12k
ans. 2

Grade:12th pass

2 Answers

Arun
25763 Points
3 years ago
Dear student
 
Projection of vector A in the direction of B = A. B / |B|
 = 6 + 32 – 12 / 13
 
 = 26 / 13
 
 = 2
 
Regards
Arun (askIITians forum expert)
Khimraj
3007 Points
3 years ago
projection = |A|cos\Theta = |A|*A.B/|A||B| = A.B/|B| = 2
Hope it clears.......................................................

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