24 Test file number 106

  24.1 Problem number 29
  24.2 Problem number 167
  24.3 Problem number 168
  24.4 Problem number 477
  24.5 Problem number 478
  24.6 Problem number 479

Test folder name:

test_cases/4_Trig_functions/4.3_Tangent/106_4.3.7-d_trig-^m-a+b-c_tan-^n-^p