This site includes both a visual and algebraic proof for the Pythagorean Theorem.
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Math Forum
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Step-by-step solutions to odd-numbered problems from dozens of pre-algebra textbooks.
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Hotmath
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A helpful scientific calculator that runs in your web browser window.
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Holt Online Learning
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A Frequently Asked Question from Ask Dr. Math.
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Ask Dr. Math
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Gives a list of formulas for kids to help them if they have forgotten them.
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Think Quest
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Step-by-step solutions to odd-numbered problems from dozens of algebra textbooks.
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Hotmath
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Excellent site showing examples of algebra, trig, calculus, differential equations, and linear algebra.
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Paul's Online Math Notes
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Gives detailed steps to solving rational expressions with examples.
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Algebra Lab
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