$\frac{(\cos \alpha + i \sin \alpha)(\cos \beta + i \sin \beta)}{(\cos \gamma + i \sin \gamma)(\cos \delta + i \sin \delta)}$ का मान ज्ञात कीजिए।

  • A
    $\cos (\alpha + \beta - \gamma - \delta) - i \sin (\alpha + \beta - \gamma - \delta)$
  • B
    $\cos (\alpha + \beta - \gamma - \delta) + i \sin (\alpha + \beta - \gamma - \delta)$
  • C
    $\sin (\alpha + \beta - \gamma - \delta) - i \cos (\alpha + \beta - \gamma - \delta)$
  • D
    $\sin (\alpha + \beta - \gamma - \delta) + i \cos (\alpha + \beta - \gamma - \delta)$

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Similar Questions

किन्हीं दो सम्मिश्र संख्याओं $z_{1}$ और $z_{2}$ के लिए सिद्ध कीजिए कि $\operatorname{Re}(z_{1} z_{2})=\operatorname{Re} z_{1} \operatorname{Re} z_{2}-\operatorname{Im} z_{1} \operatorname{Im} z_{2}.$

यदि $i=\sqrt{-1}$ है,तो $1+i^2+i^4+i^6+\ldots+i^{2024} = $

सम्मिश्र संख्या $-i$ का गुणात्मक प्रतिलोम ज्ञात कीजिए।

यदि $a+bi = \frac{i}{1-i}$ है,तो $(a, b) =$

मान ज्ञात कीजिए: $\left[i^{18}+\left(\frac{1}{i}\right)^{25}\right]^{3}$.

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