Is it true that if a, b, c are the DR's of a given vector then (a2+ b2+c2)1/2 gives its magnitude??

Asked by  | 10th Oct, 2008, 04:11: PM

Expert Answer:

Yes r = a i + bj + ck

Implies Mod r = sq root of [ a2 + b2 + c2]

Answered by  | 13th Oct, 2008, 01:59: PM

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