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7.2: Addition and Subtraction Formulas. TSW understand and be able to apply the addition formulas for sine and cosine and understand the idea that a sin(x) + b cos(x) is a phase-shifted sine wave at an 85% mastery level as demonstrated by discussion and practice. Formulas.
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7.2: Addition and Subtraction Formulas TSW understand and be able to apply the addition formulas for sine and cosine and understand the idea that asin(x) + bcos(x) is a phase-shifted sine wave at an 85% mastery level as demonstrated by discussion and practice.
Formulas Formulas for sine Formulas for cosine Formulas for tangent
Using the Formulas Ex: Find the exact value of each expression. Ex: Find the exact value of the expression. Prove the cofunction identity:
Proving Identities Ex: Verify the identity: Ex: If f(x) = sinx, show that