College Algebra / Unit 4 Alg 182 short lesson, about 20 seconds
Complex Numbers in Standard Form
Captions available
The idea
A complex number in standard form is a + bi, with real part a and imaginary part b; every real number qualifies, with b = 0.
In practice
3 + 2i, −5i, and 7 are all complex numbers: the second has real part 0, the third imaginary part 0.
Your place on the trail
Every lesson rests on earlier ones and opens later ones. Tap any to jump.
Builds on
- Nothing. This is a starting point.
Unlocks
- Nothing yet depends on this.
Something wrong in this lesson? Flag it · Sources for College Algebra