Double angle and half angle identities
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Double-Angle and Half-Angle Identities. Section 5.3. Objectives. Apply the half-angle and/or double angle formula to simplify an expression or evaluate an angle. Apply a power reducing formula to simplify an expression. . Double-Angle Identities. Half-Angle Identities.

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Objectives
Objectives

  • Apply the half-angle and/or double angle formula to simplify an expression or evaluate an angle.

  • Apply a power reducing formula to simplify an expression.






If find the values of the following trigonometric functions
If find the values of the following trigonometric functions.


If find the values of the following trigonometric functions1
If find the values of the following trigonometric functions.


Use the power reducing formula to simplify the expression
Use the power-reducing formula to simplify the expression

Is there another way to simplify this without using a power-reducing formula?


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