Functions

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These online videos and calculus study materials can help you find the zeros of a polynomial function, transform and reflect functions, graph integer power functions and greatest integer functions, and more. Try one today—they're 100% free.
In this video, Salman Khan of Khan Academy explains polynomial approximation of functions. Part 7 of 7.

In this video, Salman Khan of Khan Academy explains polynomial approximation of functions. Part 6 of 7.

In this video, Salman Khan of Khan Academy explains polynomial approximation of functions. Part 4 of 7.

In this video, Salman Khan of Khan Academy explains polynomial approximation of functions. Part 2 of 7.

In this video, Salman Khan of Khan Academy explains polynomial approximation of functions. Part 1 of 7.

Excellent site showing examples of algebra, trig, calculus, differential equations, and linear algebra.

An online graphing calculator for students who do not have a hand-held one.

Very extensive help sheet that contains everything from simple derivative/integration formulas, to quick explanations of advanced derivation and integration techniques.

Several example problems and tutorials dealing with differential calculus

Almost all of the Trigonometric Identities, including Reciprocal identities, Pythagorean identities, Quotient identities, Co-Function identities, Even-Odd identities, Sum-Difference formulas, Double- and Half-angle formulas, and Sum-to-Product and Product-to-Sum formulas.

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