Math Problem Statement
Multiply and simplify the following complex numbers:
[(\pink{1-5i}) \cdot (\blue{3-2i})]
Solution
To multiply and simplify the given complex numbers , we will use the distributive property, often referred to as the FOIL (First, Outer, Inner, Last) method when dealing with binomials.
Let's proceed step-by-step:
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First: Multiply the first terms from each binomial:
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Outer: Multiply the outer terms:
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Inner: Multiply the inner terms:
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Last: Multiply the last terms:
Next, we simplify by combining like terms. But first, recall that , so:
Now, let's add up all the terms:
Combine the real and imaginary parts:
Thus, the simplified result of multiplying is:
Would you like to see further details or have any questions?
Here are 5 related questions:
- How do you add and subtract complex numbers?
- What is the conjugate of a complex number, and how is it used in division?
- How do you find the modulus of a complex number?
- What is the polar form of a complex number?
- How do you multiply complex numbers in polar form?
Tip: Always remember that . This is crucial for simplifying expressions involving complex numbers.
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Math Problem Analysis
Mathematical Concepts
Complex Numbers
Multiplication of Complex Numbers
Formulas
FOIL Method
Imaginary Unit Properties (i^2 = -1)
Theorems
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Suitable Grade Level
Advanced High School