Simplifying the Expression: (a^(-2)b)^((1)/(2)) times (a^(-3))^((1)/(3))
This article will explore the process of simplifying the expression: (a^(-2)b)^((1)/(2)) times (a^(-3))^((1)/(3)). We will utilize the laws of exponents to break down the expression and arrive at a simplified form.
Understanding the Laws of Exponents
To simplify the expression, we need to recall the following laws of exponents:
- (a^m)^n = a^(m*n): This states that when raising a power to another power, we multiply the exponents.
- a^m * a^n = a^(m+n): This states that when multiplying powers with the same base, we add the exponents.
- a^(-m) = 1/a^m: This states that a negative exponent indicates the reciprocal of the base raised to the positive exponent.
Simplifying the Expression
Let's break down the simplification step by step:
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Apply the first law of exponents to both terms:
- (a^(-2)b)^((1)/(2)) = a^(-2 * (1/2)) * b^(1/2) = a^(-1) * b^(1/2)
- (a^(-3))^((1)/(3)) = a^(-3 * (1/3)) = a^(-1)
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Substitute the simplified terms back into the original expression:
- a^(-1) * b^(1/2) * a^(-1)
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Apply the second law of exponents to combine the 'a' terms:
- a^(-1) * a^(-1) = a^(-1 - 1) = a^(-2)
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Apply the third law of exponents to express the final result with positive exponents:
- a^(-2) * b^(1/2) = 1/(a^2 * b^(1/2))
Conclusion
Therefore, the simplified form of the expression (a^(-2)b)^((1)/(2)) times (a^(-3))^((1)/(3)) is 1/(a^2 * b^(1/2)). This process demonstrates the importance of understanding and applying the laws of exponents for effective simplification of mathematical expressions.