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Lesson_7.3_DoubleAngles

# Lesson_7.3_DoubleAngles - tan tan tan 2 2 1 2 θ =-MHF 4U0...

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MHF 4U0 Name: 7.3 Double Angle Formulas Use a compound angle to determine the formula for the double angle sin 2 θ : What is the relationship between the graphs of y = sin θ and y = sin 2 θ ? Example #1: Express each of the following as a single trigonometric ratio, and then evaluate. (a) cos 2 (30 ° ) – sin 2 (60 ° ) (b) 2 12 12 sin cos π F H G I K J F H G I K J pg. 1/2 Double Angle Formula for Sine Double Angle Formulas for Cosine sin 2 θ = cos 2 θ = cos 2 θ = cos 2 θ = Double Angle Formula for Tangent

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Unformatted text preview: tan tan tan 2 2 1 2 θ =-MHF 4U0 Name: Example #2: (a) Given sin θ = 7 25 , 0 2 ≤ ≤ π , determine the values of sin(2 θ ), cos(2 θ ), and tan(2 θ ). (b) Determine an approximate measure for θ in radians, to the nearest hundredth. Example #3: Develop a formula for sin x 2 F H G I K J . Assigned Work: page 407 #1, 2, 3abd, 4, 5, 11a, 15 pg. 2/2...
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Lesson_7.3_DoubleAngles - tan tan tan 2 2 1 2 θ =-MHF 4U0...

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