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5 Written questions

5 Matching questions

  1. cos2x
  2. tan2x
  3. cos(a+b) + cos(a-b)
  4. tan(1/2x)
  5. sin2x
  1. a 2tanx/1-tan^2x
  2. b 2sinxcosx
  3. c cos^2x-sin^2x
  4. d 2cosacosb
  5. e sinx/1+cosx

5 Multiple choice questions

  1. 2sinasinb
  2. 2cos1/2(x+y)sin1/2(x-y)
  3. 1-2sin^2x
  4. -sinx
  5. 1

5 True/False questions

  1. sin(1/2x)+-√1/2(1-cosx)

          

  2. tan(a-b)tana-tanb/1+tanatanb

          

  3. cosx - cosy-2sin1/2(x+y)sin1/2(x-y)

          

  4. tan(1/2x)1-cosx/sinx

          

  5. cos(a+b)cosacosb-sinasinb

          

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