Practice problem
What is the rectangular form of 7(cos(π3)+isin(π3))7\big(\text{cos}(\frac{\pi}{3}) + i\text{sin}(\frac{\pi}{3})\big)7(cos(3π)+isin(3π))?
−7i-7i−7i
777
72+732i\frac{7}{2}+ \frac{7\sqrt{3}}{2}i27+273i
732+72i\frac{7\sqrt{3}}{2}+ \frac{7}{2}i273+27i
Type a concept, like “slope” or “photosynthesis”.
