Jawab: X = 75° atau X = 135°
Penjelasan dengan langkah-langkah:
tan (3x - 180)° = 1
tan (3x - 180)° = tan (225)°
3x - 180 = 225
3x = 225 + 180
3x = 405
x = 405/3 = 135°
atau
tan (3x - 180)° = tan (45)°
3x - 180 = 45
3x = 45 + 180
3x = 225
x = 225/3 = 75°
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Jawab: X = 75° atau X = 135°
Penjelasan dengan langkah-langkah:
tan (3x - 180)° = 1
tan (3x - 180)° = tan (225)°
3x - 180 = 225
3x = 225 + 180
3x = 405
x = 405/3 = 135°
atau
tan (3x - 180)° = 1
tan (3x - 180)° = tan (45)°
3x - 180 = 45
3x = 45 + 180
3x = 225
x = 225/3 = 75°