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Root Rule

Definition

The root rule is a derivative rule used to find the derivative of a function that involves a radical expression. It states that the derivative of √(x) is equal to 1/(2√(x)).

Analogy

Imagine you have a garden with a plant growing from the ground. The root rule is like digging up the plant and finding its roots. Just as you uncover the hidden part of the plant, the root rule helps us uncover the hidden rate of change in functions involving square roots.

Related terms

Chain Rule: The chain rule is another derivative rule used when we have composite functions. It allows us to find the derivative of functions within other functions.

Power Rule: The power rule is a basic derivative rule used for functions involving exponents. It states that if we have x raised to some power n, then its derivative is nx^(n-1).

Quotient Rule: The quotient rule is used to find derivatives when we have fractions or ratios involved in our function. It helps us determine how changes in one part affect changes in another part of the function.

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AP® and SAT® are trademarks registered by the College Board, which is not affiliated with, and does not endorse this website.