Solving Complex Relationships: Exploring (z i^2 sqrt{3} i^3)
Solving Complex Relationships: Exploring (z i^2 sqrt{3} i^3)
The given problem involves complex numbers and a bit of trigonometry, which is a common theme in advanced mathematics. We'll walk through the solution step by step, providing a detailed explanation for each transformation and step we take. Our goal is to find all possible values of (z).
Introduction to Z and I
Let's start by understanding the given equation: (z i^2 sqrt{3} i^3). We can simplify the right side by recognizing that:
First, simplify (i^3):[i^3 i^2 cdot i -1 cdot i -i] Next, simplify (sqrt{3} i^3):
[sqrt{3} i^3 sqrt{3} cdot (-i) -sqrt{3} i]
Thus, the equation becomes:
(z i^2 -sqrt{3} i) (Equation 1)
Simplifying the Expression Further
Using the value of (i^2 -1), we can rewrite the left side:
(z (-1) -sqrt{3} i)
(z sqrt{3} i)
However, to provide a more thorough and detailed solution, we will use the polar form and De Moivre's Theorem. Polar form is particularly useful with complex numbers, as it simplifies the process of multiplication and division.
Using Polar Form and De Moivre's Theorem
Let's use the polar form. We'll start by rewriting (z) and (i) in polar form:
(z x yi)
(z i (x yi)(-1 0i) -x - yi)
(sqrt{3} i^3 sqrt{3} (-i) -sqrt{3} i))
From De Moivre's Theorem, we know that multiplying by (i^2) changes the argument by 90 degrees and the magnitude by the square root of the original magnitude. This is useful in breaking down the problem.
Solving for Z
Given the nature of the problem, we'll solve for (z) by considering the real and imaginary parts of the equation.
First Solution:
(z 2i)
We get this value by recognizing that when (z 2i), (z i^2 2i cdot -1 -2i). However, this simplifies to (sqrt{3} i), which matches the original expression after simplification.
Second Solution:
(z -2 - 3i)
Alternatively, we can solve by expanding and simplifying the quadratic equations derived from the polar form transformation. Let's assume (z omega delta i).
System of Equations Approach
Starting with:
(z i^2 -sqrt{3} i)
We can rewrite this as:
(omega delta i)(-1 0i) -sqrt{3} i)
To solve for (omega) and (delta), we equate the real and imaginary parts:
Real Part: (-omega -sqrt{3}) Imaginary Part: (-delta -sqrt{3})Solving these, we find:
(omega sqrt{3}) (delta sqrt{3})However, to find all possible values, we consider the transformation through De Moivre's Theorem and solve the system:
(omega^4 - 16 0)
Two possible values for (omega) are (pm 2).
Substituting these back, we find:
If (omega 2), then (delta 1). If (omega -2), then (delta -3).Hence, the possible values for (z) are:
(z_1 2i) (z_2 -2 - 3i)Therefore, the solutions to the equation (z i^2 sqrt{3} i^3) are:
(boxed{z_1 2i})
(boxed{z_2 -2 - 3i})