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Name ________________________________________ Date _______________ Period ____
CHAPTER 5 PT.I PRACTICE QUIZSHORT 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) 1
1−sin x+ 1
1+sin x=2 sec x2
4) sin2x – sin2y = cos2y – cos2x
5) cos2α (1 + tan2α) = 1
6) tan x + cot x = sec x csc x
7) tan x−cot xtan x+cot x
=¿sin2x – cos2x
8) sinx cos x
cos2 x−sin2 x= tan x
1−tan2 x
9) Find the exact value of sin 13π12
10) Find the exact value of tan 17π12
