Complex Numbers

This math topic focuses on converting complex numbers from polar form (using radians) to rectangular form. It includes problems that require transforming expressions of the type \( r(\cos(\theta \text{ rad}) + i \sin(\theta \text{ rad})) \) into the form \( a + bi \), where \( r \) is the magnitude, \( \theta \) is the angle in radians, \( a \) and \( b \) are real numbers, and \( i \) is the imaginary unit. The worksheet provides multiple choice answers for each problem, testing the student's ability to accurately perform these conversions.