$\frac{a + b\omega + c\omega^2}{b + c\omega + a\omega^2} + \frac{a + b\omega + c\omega^2}{c + a\omega + b\omega^2}$ ની કિંમત શું થશે?

  • A
    $1$
  • B
    $-1$
  • C
    $2$
  • D
    $-2$

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પદાવલિ $\frac{(\cos 2\theta + i\sin 2\theta)^7}{(\cos 4\theta + i\sin 4\theta)^3}$ ને સરળ બનાવો.

$\left(\frac{1+\cos (3 \theta)+i \sin (3 \theta)}{1+\cos (3 \theta)-i \sin (3 \theta)}\right)^{20} = ?$

જો $x_n = \cos \frac{\pi}{2^n} + i \sin \frac{\pi}{2^n}$ હોય,તો $\prod_{n=1}^{\infty} x_n =$

$(1 + 2\omega + \omega^2)^{3n} - (1 + \omega + 2\omega^2)^{3n}$ ની કિંમત શોધો.

જો $z$ એ $x^7=1$ નું અવાસ્તવિક બીજ હોય,તો $1+3z+5z^2+7z^3+9z^4+11z^5+13z^6=$

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