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Verified answer
Persamaan Trigonometritan(3x +45) = tan 93 , pada 0 < x < 180
tan (3x + 45) = tan 93
3x+45 = 93 + k. 180
3x = (93-45) + k. 180
3x = 48 + k. 180
x = 16 + k. 60
k = 0,1,2,3,...
k = 0 --> x = 16
k = 1 --> x = 76
k = 2 --> x = 136
k = 3 --> x = 196 (tdak memenuhi krn > 180)
HP x = (16, 76, 136 )