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5 Written questions

5 Matching questions

  1. cos 2u
  2. sin 2u
  3. sum of a geometric series
  4. sum of infinite geometric series
  5. cos u/2
  1. a Sn = a1 ( [1-r^(n-1) / 1-r ] )
  2. b ± √ (1 + cos u) /2
  3. c 1- 2sin^2 u
    2cos^2 u -1
    cos^2 u - sin^2 u
  4. d a1
    ----
    1-r if -1<r<1
  5. e 2 sin u cos u

5 Multiple choice questions

  1. 1-cos 2u
    -------------
    2
  2. cos u cos v + sin u sin v
  3. sin u cos v - cos u sin v
  4. a n = a1 ( r^(n-1) )
  5. sin u cos v + cos u sin v

5 True/False questions

  1. tan^2 u1-cos 2u
    -------------
    2

          

  2. tan (u-v)tan u + tan v
    -----------------------
    1 - tan u tan v

          

  3. cos (u+v)cos u cos v + sin u sin v

          

  4. cos^2 u1 + cos 2u
    ----------------
    2

          

  5. tan u/2sin u
    ---------
    1 + cos u