Power Reducing Identities
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More Lessons for PreCalculus
Math Worksheets
Videos, worksheets, games and activities to help PreCalculus students learn about the power reducing identities and how to use them.
Using a Power-Reducing Identity
Power Reducing Formulas for Sine and Cosine, Example 1.
This video gives the reducing formulas for sin2x and cos2x in terms of cos x and how to use the reducing formulas.
This video gives the reducing formulas for sin2x and cos2x in terms of cos x and uses them to solve for csc4 (2x) = 4
Power Reducing Formulas
Try out our new and fun Fraction Concoction Game.
Add and subtract fractions to make exciting fraction concoctions following a recipe. There are four levels of difficulty: Easy, medium, hard and insane. Practice the basics of fraction addition and subtraction or challenge yourself with the insane level.
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