20  Calculus

J. Barron

Derivative

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If u and v are functions of x:

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where:

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If z = f(x) and y = g(z), then:

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Maxima and Minima

f(x) has a stationary point wherever f’(x) = 0: The point is a maximum, minimum, or point of inflexion according to f”(x) being less than, greater than, or equal to zero. f(x, y) has a stationary point whenever.

Let (a, b) be ...

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