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If |vecaxxvecb|^2+|veca.vecb|^2=144and |...

If `|vecaxxvecb|^2+|veca.vecb|^2=144and |veca|=4,` then the value of `|vecb|` is

A

1

B

2

C

3

D

4

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The correct Answer is:
C
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