Find each root. ⁷√y⁷

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Recognize that the expression ⁷√y⁷ represents the seventh root of y raised to the seventh power, which can be written as $\sqrt[7]{y^{7}}$.

Recall the property of radicals and exponents: $\sqrt[n]{a^{m}} = a^{\frac{m}{n}}$. Applying this, rewrite the expression as $y^{\frac{7}{7}}$.

Simplify the exponent $\frac{7}{7}$ to 1, so the expression becomes $y^{1}$.

Understand that $y^{1}$ is simply $y$, so the root simplifies to $y$.

Note that this simplification assumes $y$ is non-negative if we are considering real numbers, because even roots of negative numbers are not real.

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Key Concepts

Here are the essential concepts you must grasp in order to answer the question correctly.

nth Roots and Radicals

The nth root of a number is a value that, when raised to the nth power, gives the original number. For example, the 7th root of y⁷ means finding a number which, when raised to the 7th power, equals y⁷. Understanding how to simplify expressions involving roots is essential.

Properties of Exponents

Exponents represent repeated multiplication. Key properties include that (a^m)^n = a^(m*n) and that the nth root of a^m can be expressed as a^(m/n). These properties allow simplification of expressions like ⁷√y⁷ by converting roots into fractional exponents.

Simplifying Radical Expressions

Simplifying radicals involves rewriting expressions to their simplest form, often by canceling powers or converting roots to exponents. For ⁷√y⁷, simplification uses the fact that the 7th root and the 7th power cancel out, resulting in y, assuming y is non-negative or defined appropriately.

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