Solving trigonometric equations using double-angle identities

Lessons

• 1.
  Utilizing "Double-Angle Identities" to solve:

  
  
  a)

  $\cos 2x = 2 \sin^2x$

  $0 \leq x$ < $2\pi$
  
  
  
  b)

  $\tan x - \cot x = 2$

  $0 \leq x$ < $2\pi$
  
  
  

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