Question 17 of 25 Which of the following are not trigonometric identities? Check all that apply. O A. 1- tanxtany = cos(x+y) coSXcosy O B. 4cosx sinx 2cosx+1-2sinx С. sec x - cosх sin? x %3D sec x O D. tanX COSX CSCX = 1

Calculus: Early Transcendentals
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Author:James Stewart
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Chapter1: Functions And Models
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Question 17 of 25
Which of the following are not trigonometric identities? Check all that apply.
O A. 1-tanxtany =
cos(x+y)
coSXcosy
O B. 4cosx sinx 2cosx+1-2sinx
С.
sec x - cosх
sin? x
%3D
sec x
O D. tanX COSX cScX = 1
SUBMIT
+ PREVIOUS
Transcribed Image Text:Question 17 of 25 Which of the following are not trigonometric identities? Check all that apply. O A. 1-tanxtany = cos(x+y) coSXcosy O B. 4cosx sinx 2cosx+1-2sinx С. sec x - cosх sin? x %3D sec x O D. tanX COSX cScX = 1 SUBMIT + PREVIOUS
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