Jika cos A = 4/5 , 0° < A < 90° , nilai Tan A =.......
Matematika
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Pertanyaan
Jika cos A = 4/5 , 0° < A < 90° , nilai Tan A =.......
2 Jawaban
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1. Jawaban dnnyz07
0 < A < 90
Kuadran 1 , tan +
cos = sa/mi
Sa = 4
Mi = 5
De = 3 (phytagoras)
Tan A = de/sa
= 3/4 -
2. Jawaban ErikCatosLawijaya
Mapel : Matematika
Kelas : X SMA
Bab : Trigonometri
Pembahasan :
Cos A = 4/5
Samping = 4
Miring = 5
Depan = 3 (Triple Pythagoras)
Maka...
Tan A = Depan/Samping
Tan A = 3/4