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In triangle ABC, a=5, b=4 and cos(A+B)=(...

In triangle `ABC, a=5, b=4` and `cos(A+B)=(31)/(32)` In this triangle,`c=`

A

3

B

6

C

7

D

9

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The correct Answer is:
B
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ARIHANT MATHS-PROPERTIES AND SOLUTION OF TRIANGLES -Exercise (Single Option Correct Type Questions)
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