ACT Math › How to add complex numbers
Complex numbers take the form , where
is the real term in the complex number and
is the nonreal (imaginary) term in the complex number.
Which of the following is incorrect?
Complex numbers take the form , where
is the real term in the complex number and
is the nonreal (imaginary) term in the complex number.
Thus, to balance the equation, add like terms on the left side.
What is the sum of and
given
and
?
A complex number is a combination of a real and imaginary number. To add complex numbers, add each element separately.
In equation ,
is the real component and
is the imaginary component (designated by
).
In equation ,
is the real component and
is the imaginary component.
When added,
Complex numbers take the form , where a is the real term in the complex number and bi is the nonreal (imaginary) term in the complex number.
Simplify:
When adding or subtracting complex numbers, the real terms are additive/subtractive, and so are the nonreal terms.
Complex numbers take the form , where a is the real term in the complex number and bi is the nonreal (imaginary) term in the complex number.
Can you add the following two numbers: ? If so, what is their sum?
Complex numbers take the form a + bi, where a is the real term in the complex number and bi is the nonreal (imaginary) term in the complex number. Taking this, we can see that for the real number 8, we can rewrite the number as , where
represents the (zero-sum) non-real portion of the complex number.
Thus, any real number can be added to any complex number simply by considering the nonreal portion of the number to be .
Suppose and
Evaluate the following expression:
Substituting for and
, we have
This simplifies to
which equals
What is the solution of the following equation?
A complex number is a combination of a real and imaginary number. To add complex numbers, add each element separately.
First, distribute:
Then, group the real and imaginary components:
Solve to get: