Math Problem Statement

Simplify the following expression: [(2 ± (-12)^(1/2))/2]

Solution

We are tasked with simplifying the expression:

2±122\frac{2 \pm \sqrt{-12}}{2}

Step 1: Simplify 12\sqrt{-12}

We know that 12\sqrt{-12} involves a negative number under the square root, which introduces the imaginary unit ii, where i=1i = \sqrt{-1}. Thus, we can rewrite:

12=12i\sqrt{-12} = \sqrt{12} \cdot i

Since 12=23\sqrt{12} = 2\sqrt{3}, we have:

12=23i=2i3\sqrt{-12} = 2\sqrt{3} \cdot i = 2i\sqrt{3}

Step 2: Substitute into the original expression

Now, substitute 12=2i3\sqrt{-12} = 2i\sqrt{3} back into the expression:

2±2i32\frac{2 \pm 2i\sqrt{3}}{2}

Step 3: Simplify the fraction

We can simplify this expression by dividing both terms in the numerator by 2:

22±2i32=1±i3\frac{2}{2} \pm \frac{2i\sqrt{3}}{2} = 1 \pm i\sqrt{3}

Final Answer:

The simplified form of the expression is:

1±i31 \pm i\sqrt{3}


Do you want more details on any step or have any questions?

Here are 5 related questions:

  1. How do you simplify other expressions with square roots of negative numbers?
  2. What is the significance of the imaginary unit ii?
  3. How would the simplification change if 12-12 were positive?
  4. Can this result be represented graphically in the complex plane?
  5. How do you simplify more complex expressions involving imaginary numbers?

Tip: When simplifying expressions with imaginary numbers, always factor out ii to handle negative square roots properly.

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Math Problem Analysis

Mathematical Concepts

Complex Numbers
Square Roots
Imaginary Numbers

Formulas

Square root of a negative number: √(-a) = √a * i
Simplification of fractions: (a ± bi) / c

Theorems

Properties of Imaginary Numbers
Basic Algebraic Simplification

Suitable Grade Level

Grades 10-12