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5 Written questions

5 Matching questions

  1. sin(1/2x)
  2. sinx - siny
  3. sin(-x)
  4. cos(1/2x)
  5. cosx - cosy
  1. a -2sin1/2(x+y)sin1/2(x-y)
  2. b +-√1/2(1-cosx)
  3. c -sinx
  4. d 2cos1/2(x+y)sin1/2(x-y)
  5. e +-√1/2(1+cosx)

5 Multiple choice questions

  1. 1-cosx/sinx
  2. 2cosacosb
  3. tana-tanb/1+tanatanb
  4. 2sinacosb
  5. secx

5 True/False questions

  1. cos(-x)-cotx

          

  2. cos(a-b)cosacosb+sinasinb

          

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

          

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

          

  5. sin(a-b)sinacosb+cosasinb

          

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