In DeltaABC, a=2cm,b=3cmandc=4cm, then a...

In `DeltaABC, a=2cm,b=3cmandc=4cm`, then angle A is

A

`cos^(-1)(1/24)`

B

`cos^(-1)(11/16)`

C

`cos^(-1) (7/8)`

D

`cos^(-1) (-1/4)`

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The correct Answer is:

C

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