CBSE Class 11-science Answered
determine the vector which when added to the resultant of:A=3i-5j+7k and B=2i+4j-3k gives a unit vector along y axis?
Asked by akkisara | 22 Jul, 2011, 01:31: AM
Expert Answer
Here, =3i-5j+7k and =2+4-3
Resultant vector, =+=(3-5+7) +(2+4-3) =5-+4
the unit vector along -direction=
hence, Required vector=-(5-+4)= -5+2-4
Answered by | 22 Jul, 2011, 09:51: AM
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