Math Problem Statement

Bentuk sederhana dari \(\frac{\sqrt[3]{a^2 \sqrt{a}}}{a}\)?

Solution

The problem in the image asks for the simplified form of the expression:

a2a3a\frac{\sqrt[3]{a^2 \sqrt{a}}}{a}

Let's break it down step by step to simplify the expression.

Step 1: Simplify the expression inside the cube root.

The term inside the cube root is a2aa^2 \sqrt{a}. We know that a\sqrt{a} is the same as a1/2a^{1/2}. So, we can rewrite the expression as:

a2a1/2=a2+1/2=a5/2a^2 \cdot a^{1/2} = a^{2 + 1/2} = a^{5/2}

Step 2: Apply the cube root.

Now we apply the cube root to a5/2a^{5/2}. The cube root of a power of aa is the same as raising the exponent to 1/31/3:

a5/23=a(5/2)(1/3)=a5/6\sqrt[3]{a^{5/2}} = a^{(5/2) \cdot (1/3)} = a^{5/6}

Step 3: Simplify the entire expression.

Now we have:

a5/6a=a5/61=a5/66/6=a1/6\frac{a^{5/6}}{a} = a^{5/6 - 1} = a^{5/6 - 6/6} = a^{-1/6}

Step 4: Express the result.

The simplified form of the given expression is a1/6a^{-1/6}.

This matches option (b) in the image.

Would you like a further breakdown of any of these steps?

Related questions:

  1. How do you simplify expressions involving roots and exponents?
  2. What are the rules for simplifying fractional exponents?
  3. How do you handle cube roots in algebraic expressions?
  4. Can you explain how to apply exponent subtraction in more detail?
  5. What is the difference between cube roots and square roots in algebraic expressions?

Tip: When simplifying expressions with both square and cube roots, it's often helpful to convert everything into fractional exponents first.

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Math Problem Analysis

Mathematical Concepts

Algebra
Exponentiation
Roots and Radicals
Simplifying Expressions

Formulas

Exponent rules: \(a^m \cdot a^n = a^{m+n}\)
Cube roots: \(\sqrt[3]{a} = a^{1/3}\)
Square roots: \(\sqrt{a} = a^{1/2}\)

Theorems

Exponentiation Theorem
Root and Radical Theorem

Suitable Grade Level

Grades 10-12