Q65 / 160 · AP EAMCET 2024 (23 May Shift 1) · Mathematics

$\cosh (\log 4)=$

  • A
    $\frac{8}{17}$
  • Correct answer
    B
    $\frac{17}{8}$
  • C
    0
  • D
    $\frac{9}{8}$

Solution

$\cos h(\log 4)=\frac{e^{\log 4}+e^{-\log 4}}{2}=\frac{4+\frac{1}{4}}{2}=\frac{17}{8}$.

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

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