39 Test file number 68

  39.1 Problem number 33
  39.2 Problem number 34
  39.3 Problem number 35
  39.4 Problem number 37
  39.5 Problem number 38
  39.6 Problem number 39

Test folder name:

test_cases/4_Trig_functions/4.1_Sine/68_4.1.11-e_x-^m-a+b_x^n-^p_sin