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5 Written questions

5 Matching questions

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

5 Multiple choice questions

  1. a1
    ----
    1-r if -1<r<1
  2. Sn = n/2 ( 2a1 + (n-1) d )
  3. a n = a1 ( r^(n-1) )
  4. 1 + cos 2u
    ----------------
    2
  5. 1 - cos 2u
    ----------------
    1+ cos 2u

5 True/False questions

  1. tan u/2± √ ( 1 - cos u) / 2

          

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

          

  3. cos u/2± √ (1 + cos u) /2

          

  4. cos (u-v)cos u cos v - sin u sin v

          

  5. cos 2u1- 2sin^2 u
    2cos^2 u -1
    cos^2 u - sin^2 u