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Math
Algebra 2
Imaginary Numbers and Quadratic Functions
Imaginary and Complex Numbers
Simplifying Complex Expressions
Complex Conjugates

Practice problem

Complex Conjugates

By AAhaan Rungta

+2 contributors

Contributors

Ahaan Rungta
Moor Xu
Alex Federspiel

What is the complex conjugate of $3i$ ?

Choose one answer

Option A: A

$-3i$

Option B: B

$3$

Option C: C

$-3$

Option D: D

$9i$

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