કિંમત શોધો: $\frac{(\cos \theta + i\sin \theta)^4}{(\sin \theta + i\cos \theta)^5}$

  • A
    $\cos \theta - i\sin \theta$
  • B
    $\cos 9\theta - i\sin 9\theta$
  • C
    $\sin \theta - i\cos \theta$
  • D
    $\sin 9\theta - i\cos 9\theta$

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${\left( \cos \frac{\pi }{3} + i\sin \frac{\pi }{3} \right)^{3/4}}$ ના તમામ બીજોનો ગુણાકાર કેટલો થાય?

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ધારો કે $\alpha = \frac{-1 + i\sqrt{3}}{2}$ અને $\beta = \frac{-1 - i\sqrt{3}}{2}$, જ્યાં $i = \sqrt{-1}$. જો $(7 - 7\alpha + 9\beta)^{20} + (9 + 7\alpha - 7\beta)^{20} + (-7 + 9\alpha + 7\beta)^{20} + (14 + 7\alpha + 7\beta)^{20} = m^{10}$ હોય, તો $m$ ની કિંમત . . . . . . છે.

જો $\omega$ એ એકમનું સંકર ઘનમૂળ હોય, તો પદાવલિ $2(1 + \frac{1}{\omega})(1 + \frac{1}{\omega^2}) + 3(2 + \frac{1}{\omega})(2 + \frac{1}{\omega^2}) + ... + (n + 1)(n + \frac{1}{\omega})(n + \frac{1}{\omega^2})$ ની કિંમત છે...

${\left( \frac{\sqrt{3} + i}{2} \right)^6} + {\left( \frac{i - \sqrt{3}}{2} \right)^6}$ ની કિંમત શોધો.

જો $\alpha$ અને $\beta$ એ સમીકરણ $x^2-2x+4=0$ ના બીજ હોય,તો $\alpha^{12}+\beta^{12}=$

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