Academy Algebra II 14.7: (PC 5.5): Multiple-Angle and Product-Sum

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Ch 5.5: Multiple-Angle and Product-to-Sum Formulas

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Presentation transcript:

Academy Algebra II 14.7: (PC 5.5): Multiple-Angle and Product-Sum No HW, Start Studying For Test

Double-Angle Formulas

Half-Angle Formulas

p.418: Use the figure to find the exact value of the trig function.

p.418: Use the figure to find the exact value of the trig function.

Use to find

Academy Algebra II 14.7: (PC 5.5): Multiple-Angle and Product-Sum HW:p.959-960(8,14,18,22,24,34,40,44)

Find all solutions:

Verify:

Rewrite the expression using a double-angle formula.

Rewrite the expression using a double-angle formula.

Use to find

Review for Test Verify Identities Solve Equations Use sum and difference formulas Find exact values of trig functions using sum and difference formulas, double-angle, and half-angle formulas