IB Maths AI HL AHL 1.13 (HL)—Complex forms and applications Question Bank

• Use polar form z=r(cos theta+i sin theta)=r cis theta and Euler form z=re^(i theta).

• Convert between Cartesian, polar and exponential forms.

• Use products, quotients and integer powers; roots are not required.

• Interpret complex operations geometrically and model sinusoidal phase shifts.