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Let u,v and w be vectors such that u + v...

Let u,v and w be vectors such that u + v + w = 0 . If `absu = 3, absv = -1` and `absw = 5` then `u cdot v + v cdot w + w cdot u` is equal to

A

0

B

-25

C

25

D

50

Text Solution

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The correct Answer is:
B
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