LET A VECTOR =2icap+3jcap+4kcap and B VECTOR=4icap+3jcap+2kcap find A vector into B vector=?

Asked by Vivek Sehgal | 2nd May, 2012, 03:13: PM

Expert Answer:

a.b = 2 * 4 + 3 * 3 + 4 * 2 = 8 + 9 + 8 = 25 units
 
a * b = (6 - 12 ) i cap + (16 - 4 ) j cap + (6- 12) k cap
        = -6 i cap + 12 j cap - 6 k cap

Answered by  | 3rd May, 2012, 12:34: PM

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