જો $\sqrt{-5-12 i}+\sqrt{7+24 i}$ ની કિંમત એક ઋણ વાસ્તવિક સંખ્યા $k$ હોય,તો $k=$

  • A
    $-5$
  • B
    $-7$
  • C
    $-6$
  • D
    $-4$

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$\sec h^{-1}\left(\frac{1}{2}\right)-\operatorname{cosec} h^{-1}\left(\frac{3}{4}\right)$ ની કિંમત શોધો.

જો $\sqrt{-5-12 i}$ અને $\sqrt{5+12 i}$ ના વાસ્તવિક ભાગો ધન હોય,$\sqrt{-8-6 i}$ નો વાસ્તવિક ભાગ ઋણ હોય,અને $a+i b = \frac{\sqrt{-5-12 i}+\sqrt{5+12 i}}{\sqrt{-8-6 i}}$ હોય,તો $2 a+b =$

$\sinh (\log (3+\sqrt{8}))=$

જો $\theta = \frac{\pi}{12}$ અને $x = \log \left(\cot \left(\frac{\pi}{4} + \theta\right)\right)$ હોય,તો $\cosh x =$

$\sqrt{(-3+4 i)(8+6 i)} = ?$

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