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The Precalculus course covers complex numbers; composite functions; trigonometric functions; vectors; matrices; conic sections; and probability and combinatorics. It also has two optional units on series and limits and continuity.
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We can approximate integrals using Riemann sums, and we define definite integrals using limits of Riemann sums. The fundamental theorem of calculus ties integrals and derivatives together and can be used to evaluate various definite integrals.
Our 100,000+ practice questions cover every math topic from arithmetic to calculus, as well as ELA, Science, Social Studies, and more. Is Khan Academy a company? Khan Academy is a nonprofit with a mission to provide a free, world-class education to anyone, anywhere.
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Get ready for Precalculus; Get ready for AP® Calculus; Get ready for AP® Statistics
Get ready for Precalculus; Get ready for AP® Calculus; Get ready for AP® Statistics
Master Algebra I with Khan Academy's interactive lessons and practice exercises, covering key concepts and problem-solving techniques.
Get ready for Precalculus; Get ready for AP® Calculus; Get ready for AP® Statistics