CBSE Class 12-science Answered
If either vector a=0 or b=0, then a.b=0. But the converse need not be true .
Asked by | 29 May, 2009, 11:57: PM
Expert Answer
if either vector a=0 or b=0, then a.b=0. But if a.b = 0 then we cant conclude that one of vectors a or b is zero
a.b =ab cos θ if θ is 90o then cos 90o = 0 hence a.b will be zero even if both a and b are non zero vectors
Answered by | 30 May, 2009, 01:56: PM
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