Jawabanmu

2014-06-02T23:09:54+07:00
Tan 0,75 = tan 3/4
cos = 4/(5(pitagoras 3 dan 4)) ; karena tan = sin/cos
2014-06-02T23:11:05+07:00
Tan = 0.75 = 75/100 = 5/4
tan = depan/samping= 5/4
depan = 5
samping=4
berarti miring =3 krn pake triple phytagoras (3 4 5)
cos = samping / miring = 4/3