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Use the properties of exponents to simplify each expression. In Exercises 9 and \(10,\) write the answers in the form \(b^{n}\), where \(b\) and \(n\) are real numbers. $$\left[(\sqrt{3})^{\pi}\right]^{4}$$

Short Answer

Expert verified
The expression simplifies to \( 3^{2\pi} \).

Step by step solution

01

Write the Expression Clearly

The given expression is \( \left[ (\sqrt{3})^{\pi} \right]^{4} \). This means \( (\sqrt{3})^{\pi} \) is raised to the 4th power.
02

Use the Power of a Power Rule

According to the power of a power rule \((a^{m})^{n} = a^{m \cdot n}\). Apply this rule to the inner expression: \[ \left[ (\sqrt{3})^{\pi} \right]^{4} = (\sqrt{3})^{\pi \cdot 4}. \]
03

Simplify the Exponentiation

Multiply the exponents: \( \pi \times 4 = 4\pi \). Thus, the expression simplifies to \( (\sqrt{3})^{4\pi} \).Rewrite \( \sqrt{3} \) as \( 3^{1/2} \), hence the expression becomes \( (3^{1/2})^{4\pi} \).
04

Apply the Power of a Power Rule Again

As per \((a^{m})^{n} = a^{m \cdot n}\), we have: \[ (3^{1/2})^{4\pi} = 3^{1/2 \cdot 4\pi} = 3^{2\pi}. \] Therefore, the simplified form is \( 3^{2\pi} \).

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Key Concepts

These are the key concepts you need to understand to accurately answer the question.

Power of a Power Rule
The power of a power rule is a fundamental property of exponents and is essential when dealing with expressions where an exponent is raised to another power. The rule states that when you have a term like \((a^m)^n\), you can multiply the exponents to simplify the expression. This gives the equivalent expression \(a^{m \cdot n}\).
  • Example: \((x^2)^3 = x^{2 \times 3} = x^6\).
This rule is crucial since it helps simplify complex expressions and makes calculations more manageable. In the provided exercise, \((\sqrt{3})^\pi\) is raised to the 4th power. By using the power of a power rule, we can combine the exponents into a single expression: \((\sqrt{3})^{\pi \times 4} = (\sqrt{3})^{4\pi}\).
Remember, applying this rule saves time and reduces potential errors in mathematical computations.
Simplifying Expressions
Simplifying expressions involves reducing an expression to its simplest form. This often means combining like terms or reducing the number of operations. When working with exponents, it's beneficial to look for ways to apply rules like the power of a power rule to simplify the expression further.
In the step-by-step solution, we see the transition from \((\sqrt{3})^{4\pi}\) to \((3^{1/2})^{4\pi}\), and further simplification to \(3^{2\pi}\) using the power of a power rule.
  • Identify components of the expression that can be combined.
  • Look for opportunities to apply exponent rules.
  • Simplify any numerical coefficients if possible.
In our example, recognizing that \(\sqrt{3}\) is the same as \(3^{1/2}\) is key, leading us to the simplified exponent form \((3^{1/2})^{4\pi} = 3^{2\pi}\). This makes the expression easier to understand and work with.
Exponentiation
Exponentiation is the mathematical operation involving a base raised to a power, represented as \(b^n\). This means multiplying the base \(b\) by itself \(n\) times. Exponentiation is a core part of algebra and is used extensively across various disciplines of mathematics.
  • \(b\) is the base.
  • \(n\) is the exponent, indicating the number of times the base is multiplied by itself.
Understanding exponentiation aids in simplifying expressions like in the provided problem. The expression \((\sqrt{3})^\pi\) involves a fractional base, as \(\sqrt{3}\) is equivalent to \(3^{1/2}\). Raising this to another power exemplifies the power of a power rule and demonstrates how exponentiation allows for expressing and manipulating powers efficiently.
Exponentiation allows expressions to be simplified concisely and systematically, especially when applying rules like multiplying exponents or converting roots to fractional exponents.

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