How Do You Simplify the Square of Complex Conjugates?

In summary, a complex square is a mathematical expression that contains both a real number and an imaginary number. Simplifying complex squares is important for easier manipulation and identification of patterns. The steps to simplify a complex square include combining like terms, using i^2 = -1, and rewriting the expression. Complex squares can be further simplified using advanced techniques, depending on the complexity. Simplifying complex squares has real-life applications in fields such as engineering and physics, where it is used to model and solve problems.
  • #1
charmedbeauty
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Homework Statement



Simplify ([itex]\sqrt{3+4i}[/itex]+[itex]\sqrt{3-4i}[/itex])[itex]^{2}[/itex]



Homework Equations





The Attempt at a Solution



well I tried expanding it out but I don't think that is the right approach but I have no other idea to tackle the problem?

so by expanding I had 6+2([itex]\sqrt{3+4i}[/itex])([itex]\sqrt{3-4i}[/itex])

But then I didnt know where to go

please help!
 
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  • #2
[tex](\sqrt{3+4i})(\sqrt{3-4i})=\sqrt{(3+4i)(3-4i)}[/tex]

Now how can you simplify the term in the sqrt? Notice we have a complex number multiplied by it's complex conjugate
 

FAQ: How Do You Simplify the Square of Complex Conjugates?

What is a complex square?

A complex square is a mathematical expression that contains both a real number and an imaginary number. It is typically written in the form a + bi, where a is the real part and bi is the imaginary part.

Why is it important to simplify complex squares?

Simplifying complex squares allows for easier manipulation and calculation of mathematical expressions. It also helps to identify patterns and relationships between different complex squares.

What are the steps to simplify a complex square?

The first step is to combine like terms, which means adding or subtracting the real parts and the imaginary parts separately. Then, use the fact that i2 = -1 to simplify the imaginary part. Lastly, rewrite the expression in the form a + bi.

Can complex squares be simplified further?

Yes, complex squares can be simplified further using advanced mathematical techniques such as factoring, completing the square, or using the quadratic formula. However, the level of simplification depends on the complexity of the expression.

How can simplifying complex squares be applied in real-life situations?

Simplifying complex squares is used in various fields such as engineering, physics, and computer science to model and solve real-life problems. For example, in electrical engineering, complex squares are used to represent AC circuits and calculate voltage and current values.

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