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In triangleABC, if a=13, b=14, c=15, the...

In `triangleABC`, if `a=13, b=14, c=15`, then cosB=

A

`(198)/(390)`

B

`(394)/(390)`

C

`(196)/(390)`

D

`(500)/(390)`

Text Solution

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The correct Answer is:
A
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