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For a vector u=[u1,u2,u3], using dot product show that u=(u.i)i+(u.j)j+(u.k)k

For a vector u=[u1,u2,u3], using dot product show that u=(u.i)i+(u.j)j+(u.k)k

Grade:12th pass

1 Answers

Arun
25763 Points
3 years ago
Dear student
 
(u.i)i+(u.j)j+(u.k)k
 
 = u1 i + u2j + u3 k
 
 = vector u
 
hence proved
 
Regards
Arun (askIITians forum expert)

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