Math Problem Statement

Hasil dari (a^(2/3) / b^(1/2))^-1 × (a^(2/3) * b^(1/2))^2 * a^(1/3) / b^(1/2) adalah ...

Solution

The problem you uploaded asks to simplify the following expression:

(a23b12)1×(a23b12)2×a13b12\left(\frac{a^{\frac{2}{3}}}{b^{\frac{1}{2}}}\right)^{-1} \times \frac{(a^{\frac{2}{3}} b^{\frac{1}{2}})^2 \times a^{\frac{1}{3}}}{b^{\frac{1}{2}}}

Step 1: Simplify (a23b12)1\left(\frac{a^{\frac{2}{3}}}{b^{\frac{1}{2}}}\right)^{-1}

When you take the inverse (raise to the power of 1-1), you flip the fraction:

(a23b12)1=b12a23\left(\frac{a^{\frac{2}{3}}}{b^{\frac{1}{2}}}\right)^{-1} = \frac{b^{\frac{1}{2}}}{a^{\frac{2}{3}}}

Step 2: Simplify the second part (a23b12)2×a13b12\frac{(a^{\frac{2}{3}} b^{\frac{1}{2}})^2 \times a^{\frac{1}{3}}}{b^{\frac{1}{2}}}

First, apply the power of 2 to both a23a^{\frac{2}{3}} and b12b^{\frac{1}{2}}:

(a23b12)2=a43b1(a^{\frac{2}{3}} b^{\frac{1}{2}})^2 = a^{\frac{4}{3}} b^1

Now, multiply by a13a^{\frac{1}{3}}:

a43×a13=a53a^{\frac{4}{3}} \times a^{\frac{1}{3}} = a^{\frac{5}{3}}

So the expression becomes:

a53b1b12=a53b12\frac{a^{\frac{5}{3}} b^1}{b^{\frac{1}{2}}} = a^{\frac{5}{3}} b^{\frac{1}{2}}

Step 3: Combine both parts

Now, multiply the two simplified expressions:

b12a23×a53b12=a53a23×b121=a1b1=ab\frac{b^{\frac{1}{2}}}{a^{\frac{2}{3}}} \times a^{\frac{5}{3}} b^{\frac{1}{2}} = \frac{a^{\frac{5}{3}}}{a^{\frac{2}{3}}} \times \frac{b^{\frac{1}{2}}}{1} = a^1 b^1 = ab

Final Answer: ab\boxed{ab}

This matches option d.


Would you like more details or clarifications on this solution?

Here are 5 related questions for further practice:

  1. How do you simplify expressions involving fractional exponents?
  2. What happens when you multiply powers of the same base?
  3. How does taking the inverse affect the exponents in a fraction?
  4. What are the rules for dividing expressions with exponents?
  5. How would the result change if the exponents were negative?

Tip: Always break down complex expressions step by step, focusing on simplifying one part at a time!

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Math Problem Analysis

Mathematical Concepts

Algebra
Exponents
Simplifying expressions with fractional exponents

Formulas

Inverse of a fraction: (a / b)^-1 = b / a
Exponent multiplication: a^m * a^n = a^(m + n)
Exponent division: a^m / a^n = a^(m - n)

Theorems

Laws of Exponents

Suitable Grade Level

Grades 10-12