$e^{\left(\sec h^{-1} \frac{1}{2}+\tan h^{-1} \frac{1}{2}+\sin h^{-1} \frac{1}{2}\right)}=$

  • A
    $\frac{2+3 \sqrt{3}+2 \sqrt{5}+3 \sqrt{15}}{2}$
  • B
    $\frac{3+2 \sqrt{3}+3 \sqrt{5}+2 \sqrt{15}}{2}$
  • C
    $\frac{2+3 \sqrt{3}+4 \sqrt{5}+5 \sqrt{15}}{2}$
  • D
    $\frac{2+3 \sqrt{3}-4 \sqrt{5}+5 \sqrt{15}}{2}$

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જો $n = (2020)!$ હોય,તો $\frac{1}{\log _{2} n} + \frac{1}{\log _{3} n} + \frac{1}{\log _{4} n} + \ldots + \frac{1}{\log _{2020} n}$ ની કિંમત કેટલી થાય?

સમીકરણ $\log(-2x) = 2\log(x+1)$ ના ઉકેલોની સંખ્યા કેટલી છે?

$7 \log \left( \frac{16}{15} \right) + 5 \log \left( \frac{25}{24} \right) + 3 \log \left( \frac{81}{80} \right)$ ની કિંમત શોધો.

$\log ab - \log |b| = $

જો $p^3 = q^4 = r^6 = t^7 = s^2$ હોય,તો $\log_t(pqrs) = \ldots$.

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