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5 Written questions

5 Matching questions

  1. sin(a-b)
  2. cos(a+b)
  3. cos2x
  4. tan2x
  5. cosx - cosy
  1. a sinacosb-cosasinb
  2. b -2sin1/2(x+y)sin1/2(x-y)
  3. c 2tanx/1-tan^2x
  4. d cosacosb-sinasinb
  5. e cos^2x-sin^2x

5 Multiple choice questions

  1. 2sinasinb
  2. 2cos^2x-1
  3. sinx
  4. -sinx
  5. 2sinacosb

5 True/False questions

  1. cos^2 x + sin^2 x2sin1/2(x+y)cos1/2(x-y)

          

  2. sec(-x)-sinx

          

  3. cot(-x)-cotx

          

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

          

  5. sinx - siny2cos1/2(x+y)sin1/2(x-y)