Precalculus: What It Covers and What You Need for Calculus
What precalculus covers (functions, polynomials, exponentials, logs, trig, sequences), how hard it is, and a study plan with free guides and calculators.
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Free Printable Math Formula Sheets (PDF)
Free printable PDF formula sheets: calculus, derivatives and integrals, trig identities, unit circle, algebra, geometry, and statistics with a z-table.
Free Calculus Textbooks (PDF): Legal, Open-Licensed Books
The best free calculus textbooks you can legally download as PDFs: OpenStax, Active Calculus, APEX Calculus, Strang’s Calculus and Calculus Made Easy.
Calculus 1 vs Calculus 2: What Each Course Covers
What Calc 1 and Calculus 2 cover topic by topic, which is harder, what comes next, and a study plan with free guides and step-by-step calculators.