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If barmu =bara-barb, barv=bara+barb and ...

If `barmu =bara-barb, barv=bara+barb and absbara=absbarb, " then " barmu.barv` is

A

`lt 0`

B

`gt0`

C

`2absbara^(2)`

D

0

Text Solution

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The correct Answer is:
D
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