# Module 1: Complex numbers and transformations

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### Practice

Powers of the imaginary unitGet 3 of 4 questions to level up!

Plot numbers on the complex planeGet 3 of 4 questions to level up!

Add & subtract complex numbersGet 3 of 4 questions to level up!

Graphically add & subtract complex numbers Get 3 of 4 questions to level up!

Multiply complex numbers (basic)Get 3 of 4 questions to level up!

Multiply complex numbersGet 3 of 4 questions to level up!

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### Practice

Complex number conjugatesGet 3 of 4 questions to level up!

Divide complex numbersGet 3 of 4 questions to level up!

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Distance of complex numbersGet 3 of 4 questions to level up!

Midpoint of complex numbersGet 3 of 4 questions to level up!

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Absolute value of complex numbersGet 3 of 4 questions to level up!

Angle of complex numbersGet 3 of 4 questions to level up!

Complex numbers from absolute value & angleGet 3 of 4 questions to level up!

Polar & rectangular forms of complex numbersGet 3 of 4 questions to level up!

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### Practice

Matrix dimensionsGet 3 of 4 questions to level up!

Matrix elementsGet 3 of 4 questions to level up!

Multiply matricesGet 3 of 4 questions to level up!

Transform vectors using matricesGet 3 of 4 questions to level up!

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### Practice

Transform polygons using matricesGet 3 of 4 questions to level up!

Matrices as transformationsGet 3 of 4 questions to level up!

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### Practice

Add & subtract matricesGet 3 of 4 questions to level up!

Multiply matrices by scalarsGet 3 of 4 questions to level up!

### Learn

### Learn

### Practice

Determinant of a 2x2 matrixGet 3 of 4 questions to level up!

Determine inverse matricesGet 3 of 4 questions to level up!

Determine invertible matricesGet 3 of 4 questions to level up!

Find the inverse of a 2x2 matrixGet 3 of 4 questions to level up!