75 Test file number 152

  75.1 Problem number 248
  75.2 Problem number 249
  75.3 Problem number 250
  75.4 Problem number 251
  75.5 Problem number 252
  75.6 Problem number 263
  75.7 Problem number 264
  75.8 Problem number 265
  75.9 Problem number 266
  75.10 Problem number 277
  75.11 Problem number 278
  75.12 Problem number 279
  75.13 Problem number 291
  75.14 Problem number 292
  75.15 Problem number 343

Test folder name:

test_cases/5_Inverse_trig_functions/5.3_Inverse_tangent/152_5.3.6_Exponentials_of_inverse_tangent