Page 22 - E-modul Trigonometri Fix_Nailul Munna
P. 22
9 9
tan = artinya tan = = . Akibatnya,
12 12
2
= +
2
2
2
2
= 12 + 9
= 144 + 81
= 225
= √225
= 15.
Sehingga diperoleh,
9 3
a) sin = = = .
15 5
12 4
b) cos = = = .
15 5
15 5
c) csc = = = .
9 3
15 3
d) sec = = = .
12 4
12 4
e) cot = = = .
9 3
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