Math Problem Statement

Simplify the given complex number expression, involving powers of complex numbers, and arithmetic operations with imaginary unit i, where i^2 = -1.

Solution

The image you uploaded contains a complex number expression, which involves operations with complex numbers (including imaginary unit ii, where i2=1i^2 = -1).

Let's break it down step by step:

  1. Numerator of the first term: z22+z23z_2^2 + z_2^3 This looks like a sum of powers of a complex number z2z_2.

  2. Denominator of the first term: 2z2+8z12z_2 + 8z_1 This is the sum of a linear combination of z2z_2 and z1z_1 (two different complex numbers).

  3. Numerator of the second term: (4+4i+i2)+(724i)(34i)(4 + 4i + i^2) + (-7 - 24i)(3 - 4i) The first part is a complex number expression, while the second part involves multiplying two complex numbers.

  4. Denominator of the second term: 68i+16+8i6 - 8i + 16 + 8i Combining real and imaginary parts.

  5. Third term (complex fraction): 4+4i+i221+28i72i+96i222\frac{4 + 4i + i^2 - 21 + 28i - 72i + 96i^2}{22} This involves simplifying complex expressions both in the numerator and the denominator.

Simplifications:

  • Simplify i2=1i^2 = -1 wherever it appears.
  • Perform basic arithmetic for real and imaginary parts in each expression.

Let's work through the calculation step-by-step to simplify everything. I'll start with the second term and third term as they contain clear complex operations.The simplified forms of the expressions are as follows:

  1. The numerator of the second term simplifies to 11440i-114 - 40i.
  2. The denominator of the second term simplifies to 2222.
  3. The numerator of the third term also simplifies to 11440i-114 - 40i, and its denominator is 2222.

Thus, both the second and third terms simplify to the same expression: 11440i22\frac{-114 - 40i}{22}

We can further simplify this fraction. Let me finalize the simplification.The simplified form of both the second and third terms is: 571120i11\frac{-57}{11} - \frac{20i}{11}

This represents the final result for these terms.

Do you have any questions or would you like a more detailed explanation of the steps? Here are some additional related questions:

  1. How can you perform arithmetic operations on complex numbers?
  2. What are the rules for simplifying complex fractions?
  3. How is multiplication of complex numbers performed?
  4. What is the significance of the imaginary unit ii and i2=1i^2 = -1?
  5. How would you represent the final result in polar form?

Tip: When simplifying complex numbers, always keep track of real and imaginary parts separately to avoid mistakes.

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Math Problem Analysis

Mathematical Concepts

Complex Numbers
Arithmetic Operations
Simplification

Formulas

i^2 = -1
Multiplication of complex numbers: (a + bi)(c + di) = (ac - bd) + (ad + bc)i
Simplification of fractions: \(\frac{a + bi}{c} = \frac{a}{c} + \frac{b}{c}i\)

Theorems

Complex number multiplication
Complex number division and simplification

Suitable Grade Level

Grades 10-12