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Let |veca|=3, |vecb|=4, |vecc|=5 and vec...

Let `|veca|=3, |vecb|=4, |vecc|=5` and `vecaxx(vecaxxvecc)+4vecb=0`, then the value of `|veca xx vecc|^(2)` equals to

A

`(9)/(256)`

B

`(16)/(3)`

C

`(256)/(9)`

D

`(3)/(16)`

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The correct Answer is:
C
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