CBSE Class 12-science Answered
solve
Asked by sumahr | 15 Jan, 2010, 06:54: PM
Expert Answer
Let the two vectors be A and B
A = Ax i + Ay j + Az k
and B = Bx i + By j + Bz k
R1 = i .... the position vector for point (1, 0, 0)
R2 = k .... the position vector for point (0, 0, 1)
A.R1 = AR1cos45 = Ax
1/
2 = Ax .........Since A = 1, vector of unit length.
A = 1/2 i or (1/2, 0 , 0)
Similarly,
B = 1/2 k or (0 , 0, 1/2)
Regards,
Team,
TopperLearning.
Answered by | 15 Jan, 2010, 09:19: PM
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