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If |a+b|= |a-b|, then which one of the f...

If `|a+b|= |a-b|`, then which one of the following is correct?

A

`a= lamda b` for some scalar `lamda`

B

a is parallel to b

C

a is perpendicular to b

D

a=b=0

Text Solution

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The correct Answer is:
C
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