The perfect study site for high school, college students and adult learners. Get help to do your homework, refresh your memory, prepare for a test, ....
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SOS math
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Step-by-step solutions to odd-numbered problems from dozens of precalculus textbooks.
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Hotmath
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Step-by-step solutions to odd-numbered problems from dozens of trigonometry textbooks.
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Hotmath
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In this video, Dr. Radi Al-Jishi provides an introduction to the basic math used in physics.
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Educator.com
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A discussion of solving problems using the unit circle and Pythagoras.
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Ask Dr. Math
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A discussion of verification problems.
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Ask Dr. Math
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A discussion of mnemonics for identities.
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Ask Dr. Math
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A very easy-to-read list of basic trig identities.
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Mathwords
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An overview of different helpful trig identities.
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visual calculus
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An excellent source of examples and facts. This site also provides online flashcards for students to test their knowledge of the identities and trig functions.
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mathmistakes.info
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