Name ________________________________________ Date _______________ Period ____ CHAPTER 5 PT.I PRACTICE QUIZ SHORT ANSWER. Write the word or phrase that best completes each statement or answers the question. Verify the following Trigonometric Identities. 1) sin θ (cot θ + tan θ) = sec θ 2) (sin + + (sin 2 θ cos θ)2 θ – cos θ)2 = 3) 4) sin2x sin2y = cos2y cos2x – – + = 1 5) cos2α (1 tan2α)
Name ________________________________________ Date _______________ Period ____ CHAPTER 5 PT.I PRACTICE QUIZ SHORT ANSWER. Write the word or phrase that best completes each statement or answers the question. Verify the following Trigonometric Identities. 1) sin θ (cot θ + tan θ) = sec θ 2) (sin θ + cos θ)2 + (sin θ – cos θ)2 = 2 3) 4) sin2x – sin2y = cos2y – cos2x 5) cos2α (1 + tan2α) = 1
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