Q68 / 160 · AP EAMCET 2025 (26 MAY SHIFT 1) · Mathematics

In $\triangle A B C$, if $a=5, b=4$ and $\cos (A-B)=\frac{31}{32}$, then $c=$

  • A
    $8$
  • B
    $\sqrt{41}$
  • Correct answer
    C
    $6$
  • D
    $\sqrt{24}$

Hence, the correct answer is option: 'C'.

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