74 Test file number 150

  74.1 Problem number 42
  74.2 Problem number 125
  74.3 Problem number 477
  74.4 Problem number 546
  74.5 Problem number 622
  74.6 Problem number 859
  74.7 Problem number 928
  74.8 Problem number 986
  74.9 Problem number 1056
  74.10 Problem number 1159

Test folder name:

test_cases/5_Inverse_trig_functions/5.3_Inverse_tangent/150_5.3.4_u-a+b_arctan-c_x-^p