Express the complex number in polar form.
2 + 0 i
A) 2 (cos0 + i sin 0)
B) 2 (cos $\pi$ + i sin $\pi$)
C) -2 (cos 0 + i sin 0)
D) no solution

Question

Express the complex number in polar form.
2 + 0 i
A) 2 (cos0 + i sin 0)
B) 2 (cos  $\pi$ + i sin  $\pi$)
C) -2 (cos 0 + i sin 0)
D) no solution

Quizplus · Accepted Answer

The polar form of a complex number is given by $r(\cos \theta + i\sin \theta)$, where $r$ is the magnitude of the complex number and $\theta$ is the argument. For $2 + 0i$, $r = 2$ and $\theta = 0$ (since the complex number lies on the positive real axis), making the correct expression $2(\cos 0 + i\sin 0)$.

Express the Complex Number in Polar Form π\piπ + I Sin π\piπ

Express the Complex Number in Polar Form $\pi$ + I Sin $\pi$