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In DeltaABC," if "a=16,b=24andc=20,"then...

In `DeltaABC," if "a=16,b=24andc=20,"then "cos.(B)/(2)=`

A

`(3)/(4)`

B

`(1)/(4)`

C

`(1)/(2)`

D

`(1)/(3)`

Text Solution

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The correct Answer is:
A
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