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If a, b and c are three vectors qith mag...

If a, b and c are three vectors qith magnitudes 1, 1 and 2 respectively and `axx(axxc)+b=0_(')` then the angle between a and c is

A

`(2pi)/(5)`

B

`(pi)/(3)`

C

`(pi)/(4)`

D

`(pi)/(6)`

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The correct Answer is:
D
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