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If |a|=1,|b|=3 and |a-b|=sqrt(7), then ...

If `|a|=1,|b|=3 and |a-b|=sqrt(7)`,
then the angle between a and b is

A

0

B

`(pi)/(6)`

C

`(pi)/(4)`

D

`(pi)/(3)`

Text Solution

Verified by Experts

The correct Answer is:
D
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