Adding and subtracting complex numbers

Adding and subtracting complex numbers

Much like any other types of numbers (i.e. whole numbers, real numbers, natural numbers ...etc.), we can apply different types of operations on complex numbers. In this section, we will learn how to perform addition and subtraction on complex numbers.
Basic Concepts: Adding functions, Subtracting functions
Related Concepts: Imaginary zeros of polynomials, Adding and subtracting vectors in component form

Lessons

  • 1.
    Adding complex numbers
    a)
    (3+4i)+(9+3i) (3+4i)+(9+3i)

    b)
    (12−3i)+(−2+2i)+(5i+1) (\frac{1}{2}-3i)+(-2+2i)+(5i+1)

    c)
    (6−5i)+(−4+7i)+(4i−2) (6-5i)+(-4+7i)+(4i-2)

  • 2.
    Subtracting complex numbers
    a)
    (7+9i)−(5+i) (7+9i)-(5+i)

    b)
    (1−3i)−(16+2i)−(13−i) (1-3i)-(\frac{1}{6}+2i)-(\frac{1}{3}-i)

    c)
    (10−12i)−(−4−10i)+2i (10-12i)-(-4-10i)+2i

  • 3.
    Adding/subtracting complex numbers graphically
    (2+2i)+(3+i) (2+2i)+(3+i)
Do better in math today
Get Started Now
15.
Imaginary and Complex Numbers
15.1
Introduction to imaginary numbers
15.2
Adding and subtracting complex numbers
15.3
Multiplying and dividing complex numbers
15.4
Complex conjugates
CLEP College Algebra
Don't just watch, practice makes perfect