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
Check out our most popular games!
Fraction Concoction Game:
Master fractions in the lab: mix, add, and subtract beakers to create the perfect concoction!
Fact Family Game:
Complete fact families and master the link between addition & subtraction and multiplication & division.
Number Bond Garden:
Clear the board by matching number pairs that sum to ten in this garden-themed mental math puzzle.
Online Addition Subtraction Game:
Practice your addition and subtraction skills to help the penguin find its mummy.
Penguin Solitaire:
Move all cards to the foundations to build four full sequences. There are two versions here: Penguin (Tuxedo) and Penguin (Original).
Sawayama Solitaire:
This is similar to the common Klondike Solitaire except for a few changes to make it more strategic.
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