Jika tan A 1/2 dan tan B 1/3 ,maka tan (A+B)
Jawaban Terkonfirmasi
Bab Trigonometri
Matematika SMA Kelas X
tan (A + B) = (tan A + tan B) / (1 – tan A . tan B)
= (1/2 + 1/3) / (1 – 1/2 . 1/3)
= (3/6 + 2/3) : (6/6 – 1/6)
= 5/6 : 5/6
= 1