TOPIC: TRIGONOMETRIC IDENTITIES Direction: Verify / modify only the right side sec2x cotx  =  tan x + cot x           tan x =  (sec2x / cot x) – tan3x   tan2 x (1 + cot2 x ) =  1 / (1 – sin2 x )

Algebra and Trigonometry (MindTap Course List)
4th Edition
ISBN:9781305071742
Author:James Stewart, Lothar Redlin, Saleem Watson
Publisher:James Stewart, Lothar Redlin, Saleem Watson
Chapter5: Trigonometric Functions: Right Triangle Approach
Section5.2: Trigonometry Of Right Triangles
Problem 21E: 21-22Trigonometric Ratios Express x and y in terms of trigonometric ratios of .
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TOPIC: TRIGONOMETRIC IDENTITIES

Direction: Verify / modify only the right side

  1. sec2x cotx  =  tan x + cot x          
  2. tan x =  (sec2x / cot x) – tan3x  
  3. tan2 x (1 + cot2 x ) =  1 / (1 – sin2 x )
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