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Questions and Answers
What is the nth root?
What is the nth root?
For any real numbers a and b, and any positive integer n, if a^n = b, then a is an nth root of b.
What is the principal root?
What is the principal root?
The positive square root of a number.
What is a radicand?
What is a radicand?
The number under the radical sign.
What does the index of a root represent?
What does the index of a root represent?
What is the simplest form of a radical?
What is the simplest form of a radical?
What does it mean to rationalize the denominator?
What does it mean to rationalize the denominator?
What are like radicals?
What are like radicals?
What is a rational exponent?
What is a rational exponent?
What is a radical equation?
What is a radical equation?
What is a square root equation?
What is a square root equation?
What is a composite function?
What is a composite function?
What is an inverse relation?
What is an inverse relation?
What is an inverse function?
What is an inverse function?
What is a one-to-one function?
What is a one-to-one function?
What is a radical function?
What is a radical function?
What is a square root function?
What is a square root function?
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Study Notes
Radical Functions and Rational Exponents Vocabulary
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nth root: Represents a number 'a' such that when raised to the power of 'n', it equals 'b'; defines the relationship between 'a' and 'b' using exponentiation.
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principal root: Specifically refers to the positive square root of a given number, distinguishing it from negative roots.
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Radicand: The term for the value or expression located beneath the radical symbol, crucial for understanding radical functions.
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index of a root: Indicates the degree of the root being taken; for instance, an index of 2 signifies a square root.
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simplest form of a radical: Achieved when the radicand contains no factors that are perfect nth powers, and all denominators in radicals are rationalized.
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rationalize the denominator: Process of transforming a fraction to eliminate radicals from the denominator and ensuring that no fractional terms exist within any radical.
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like radicals: Refers to radical expressions that share both the same index and the same radicand, allowing for the possibility of combining them.
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rational exponent: Indicates a relationship where if the nth root of 'a' is real, and 'm/n' (where 'm' is an integer) is expressed in its simplest form, the rules of rational exponents apply.
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radical equation: A type of equation that incorporates a variable within a radicand or involves a variable that possesses a rational exponent.
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square root equation: A specific category of radical equation characterized by having a square root, thus an index of 2.
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composite function: Formed when the output from one function is fed as input into another function, resulting in a new function.
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inverse relation: Represents a relationship where each element 'a' from the domain corresponds to an element 'b' in the range, and vice versa for the inverse.
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inverse function: When a relation and its inverse qualify as functions, they are denoted as inverse functions, illustrating a unique correspondence between inputs and outputs.
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one-to-one function: Ensures that each output in the range is associated with one and only one input from the domain, establishing a bijective relation.
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radical function: Encompasses any function that integrates a radical expression with a variable present within the radicand.
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square root function: A specific type of radical function that features the square root of a variable as its primary operation.
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