Math Problem Statement
Écrivez le nombre complexe suivant: z = \frac{(1+i)^8 (2-2i)^6}{(1 - \sqrt{3} i)^{10}} sous la forme z = r e^{i\theta}. Donnez la valeur r et de \theta.
Solution
The image shows a problem asking to express the given complex number in polar form , where:
Steps to solve:
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Expressing the complex numbers in polar form:
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:
- In polar form, this is because the modulus is and the argument is (45 degrees).
- Therefore, .
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:
- In polar form, this is , since the modulus is and the argument is .
- Therefore, .
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:
- In polar form, this is since the modulus is and the argument is .
- Therefore, .
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Simplifying :
- Combine the modulus terms:
- Combine the argument terms (angles): Simplifying the argument:
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Final form:
The polar form of is:
Would you like a more detailed explanation of any step?
Here are five related questions you might explore:
- How can you convert a complex number from Cartesian to polar form?
- What is the general formula for multiplying and dividing complex numbers in polar form?
- What is the significance of the modulus and argument in the polar representation of complex numbers?
- How can you simplify complex numbers when their argument exceeds ?
- How does De Moivre's Theorem apply to powers of complex numbers?
Tip: When working with complex numbers, always ensure to express the modulus and argument clearly for accurate results.
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Math Problem Analysis
Mathematical Concepts
Complex Numbers
Polar Form
Exponential Form
Formulas
z = r e^{i\theta}
|z| = \sqrt{x^2 + y^2} (modulus)
arg(z) = \text{angle of complex number} (argument)
Theorems
De Moivre's Theorem
Euler's Formula
Suitable Grade Level
Grade 11-12