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5 Written questions

5 Matching questions

  1. sin2x
  2. 1 + tan^2 x
  3. tan(1/2x)
  4. cosx + cosy
  5. cos2x
  1. a 2cos^2x-1
  2. b 2sinxcosx
  3. c 2cos1/2(x+y)cos1/2(x-y)
  4. d sec^2 x
  5. e sinx/1+cosx

5 Multiple choice questions

  1. 2cosacosb
  2. 1
  3. 2cos1/2(x+y)sin1/2(x-y)
  4. cosx
  5. -2sin1/2(x+y)sin1/2(x-y)

5 True/False questions

  1. sin(a-b)sinacosb-cosasinb

          

  2. cos(1/2x)sinx/1+cosx

          

  3. cot^2x + 1csc^2 x

          

  4. -cos(a+b) + cos(a-b)2cosacosb

          

  5. cos(a+b)cosacosb-sinasinb