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If in DeltaABC, a = 5, b = 4 and cos (...

If in `DeltaABC, a = 5, b = 4 and cos (A - B) = 31/32`, then

A

`sqrt(6)`

B

`6sqrt(6)`

C

6

D

`(216)^(1//4)`

Text Solution

Verified by Experts

The correct Answer is:
C
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