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Forma trigonometrica de un numero complejo

Authored by Pedro Guzman

Mathematics

12th Grade

Used 3+ times

Forma trigonometrica de un numero complejo
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6 questions

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1.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

 22i\sqrt{2}-\sqrt{2}i  Exprese en forma polar el siguiente complejo

 2(cos 7π4+i sen 7π4)2\left(\cos\ \frac{7\pi}{4}+i\ sen\ \frac{7\pi}{4}\right)  

 2(cos 7π4i sen 7π4)2\left(\cos\ \frac{7\pi}{4}-i\ sen\ \frac{7\pi}{4}\right)  

 2(cos 7π4+i sen 7π4)2\left(-\cos\ \frac{7\pi}{4}+i\ sen\ \frac{7\pi}{4}\right)  

 2(cos 7π4i sen 7π4)2\left(-\cos\ \frac{7\pi}{4}-i\ sen\ \frac{7\pi}{4}\right)  

2.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

 5+5i5+5i  Exprese en forma polar el siguiente complejo

 52(cos π4+i sen π4)5\sqrt{2}\left(\cos\ \frac{\pi}{4}+i\ sen\ \frac{\pi}{4}\right)  

 52(cos π4i sen π4)5\sqrt{2}\left(\cos\ \frac{\pi}{4}-i\ sen\ \frac{\pi}{4}\right)  

 2(cos π4+i sen π4)\sqrt{2}\left(\cos\ \frac{\pi}{4}+i\ sen\ \frac{\pi}{4}\right)  

 5(cos π4+i sen π4)5\left(\cos\ \frac{\pi}{4}+i\ sen\ \frac{\pi}{4}\right)  

3.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

 3+4i3+4i  Exprese en forma polar el siguiente complejo

 5(cos (tan1(43))+i sen (tan1(43)))5\left(\cos\ \left(\tan^{-1}\left(\frac{4}{3}\right)\right)+i\ sen\ \left(\tan^{-1}\left(\frac{4}{3}\right)\right)\right)  

 52(cos (tan1(43))+i sen (tan1(43)))5\sqrt{2}\left(\cos\ \left(\tan^{-1}\left(\frac{4}{3}\right)\right)+i\ sen\ \left(\tan^{-1}\left(\frac{4}{3}\right)\right)\right)  

 52(cos (tan1(43))i sen (tan1(43)))5\sqrt{2}\left(\cos\ \left(\tan^{-1}\left(\frac{4}{3}\right)\right)-i\ sen\ \left(\tan^{-1}\left(\frac{4}{3}\right)\right)\right)  

 5(cos (tan1(43))+i sen (tan1(43)))5\left(\cos\ \left(\tan^{-1}\left(\frac{4}{3}\right)\right)+i\ sen\ \left(-\tan^{-1}\left(\frac{4}{3}\right)\right)\right)  

4.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

 zn=rn[cos (nθ)+i sen(nθ)] z^n=r^n\left[\cos\ \left(n\theta\right)+i\ sen\left(n\theta\right)\right]\   Aplique el teorema De Moivre al siguiente complejo   (1+i)20\ \left(1+i\right)^{20}  

 10241024  

 2(512)2\left(512\right)  

 1024-1024  

5.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

 zn=rn[cos (nθ)+i sen(nθ)] z^n=r^n\left[\cos\ \left(n\theta\right)+i\ sen\left(n\theta\right)\right]\   Aplique el teorema De Moivre al siguiente complejo   (22+22i)12\ \left(\frac{\sqrt{2}}{2}+\frac{\sqrt{2}}{2}i\right)^{12}  

 11  

 1-1  

 22\frac{\sqrt{2}}{2}  

6.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

 zn=rn[cos (nθ)+i sen(nθ)] z^n=r^n\left[\cos\ \left(n\theta\right)+i\ sen\left(n\theta\right)\right]\   Aplique el teorema De Moivre al siguiente complejo   (22i)8\ \left(2-2i\right)^8  

 40964096  

 4096-4096  

 4(1024)-4\left(1024\right)  

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