If the expression is in exponential form, write it in radical form and evaluate if possible. If it is in radical form, write it in exponential form. Assume all variables represent positive real numbers. $-m $\sqrt{2y^5}$$

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Identify the given expression and determine whether it is in exponential or radical form. The expression is $-m \sqrt{2y^{5}}$, which is in radical form because it contains a square root symbol ($\sqrt{\cdot}$).

Recall the relationship between radicals and exponents: $\sqrt[n]{a} = a^{\frac{1}{n}}$. For a square root, $n = 2$, so $\sqrt{a} = a^{\frac{1}{2}}$.

Rewrite the radical expression $\sqrt{2y^{5}}$ using exponents: $\sqrt{2y^{5}} = (2y^{5})^{\frac{1}{2}}$.

Apply the exponent to each factor inside the parentheses separately, using the property $(ab)^c = a^c b^c$. This gives $2^{\frac{1}{2}} \cdot (y^{5})^{\frac{1}{2}}$.

Simplify the exponent on $y$ by multiplying the exponents: $y^{5 \cdot \frac{1}{2}} = y^{\frac{5}{2}}$. So the expression in exponential form is $-m \cdot 2^{\frac{1}{2}} \cdot y^{\frac{5}{2}}$.

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주요 개념

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Exponential and Radical Forms

Exponential form expresses roots using fractional exponents, where the nth root of a number is written as that number raised to the power 1/n. Radical form uses the root symbol (√) to denote roots. Converting between these forms involves rewriting roots as fractional exponents and vice versa.

Properties of Exponents

Understanding how to manipulate exponents is essential, including the rules for multiplying powers, raising powers to powers, and handling fractional exponents. For example, (a^m)^n = a^(m*n) and a^(1/n) represents the nth root of a. These properties help simplify expressions during conversion.

Evaluating Expressions with Positive Variables

Since variables represent positive real numbers, it ensures that roots and fractional exponents are defined and real. This assumption allows simplification without considering complex numbers or absolute values, making evaluation straightforward when converting between forms.

If the expression is in exponential form, write it in radical form and evaluate if possible. If it is in radical form, write it in exponential form. Assume all variables represent positive real numbers. −m2y5-m \(\sqrt{2y^5}\) −m2y5

비슷한 문제에 대한 검증된 영상 답변:

주요 개념

Exponential and Radical Forms

Properties of Exponents

Evaluating Expressions with Positive Variables

If the expression is in exponential form, write it in radical form and evaluate if possible. If it is in radical form, write it in exponential form. Assume all variables represent positive real numbers. $-m \(\sqrt{2y^5}\)$