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The non-zero vectors a, b and c are rela...

The non-zero vectors a, b and c are related by `a = 8b` and `c = -7b`. Then the angle between a and c is :

A

0

B

`(pi)/(4)`

C

`(pi)/(2)`

D

`pi`

Text Solution

Verified by Experts

The correct Answer is:
D
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