Back to The Complex Number System — Problem 2 · Task Set 28

HSN.CN Tutor Intake — Complex Numbers

This short check helps your tutor understand where to start with complex numbers. Answer each question on your own without notes or a calculator. If you are unsure, give your best try — the goal is to find what to work on together, not to grade you.

Grade 10·12 problems·~14 min·Common Core Math - HS Number and Quantity·domain·cn
Work through problems with immediate feedback
A

Procedures

1.

Compute (3+5i)(72i)(3 + 5i) - (7 - 2i) and write the result in the form
a+bia + bi. Enter the real part aa and then the imaginary part bb
(the coefficient of ii).

Real part a=a =   ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲