If in a triangle ABC, 2 (cos A)/(a)+(cos...

If in a triangle ABC, `2 (cos A)/(a)`+(cos B)/(b)+2(cos C)/c=(a)/(bc)+b/(ca)` then the value of the angle A is

A

`pi/3`

B

`pi/4`

C

`pi/2`

D

`pi/2`

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The correct Answer is:

C

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