Can someone help me solve number 76 please

AA A Tangent Lines at the Pole In Exercises 73, 74, 75, 76, 77, 78, 79, and 80, sketch a graph of the polar equation and find the tangent line(s) at the pole (if any). 73. r = 5 sin 0 Answer + 74. T = 5 cos 0 75. r = 4(1 - sin () Answer + 76. r = 2 (1 - cos () 77. T = 4 cos 30 Answer + 78. T = - sin 50 79. T = 3 sin 20 Answer + K 80. T = 3 cos 20 81 82 83. 84. 85, 86, 87, 88, 89, 90, 91, and 92, sketch a