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If cos A = 1/7 and cos B =""13/14 where ...

If `cos A = 1/7 and cos B =""13/14` where A and B both are acute angles, then the value of `(A-B)` is-

A

`75^(@)`

B

`30^(@)`

C

`45^(@)`

D

`60^(@)`

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The correct Answer is:
D
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