Page 6 - MODUL TRIGONOMETRI

0
0
0
b. Cos 225 = Cos (270 – 45 )
0
= -Sin 45
1
=  2
2
Atau
0
0
0
Cos 225 = Cos (180 + 45 )
0
= -Cos 45
1
=  2
2
0
0
0
c. Sin 750 = Sin (2.360 + 30 )
0
= Sin 30
1
=
2
0
0
d. Sin (-225 ) = - Sin 225
0
0
= - Sin(180 + 45 )
0
= - (-sin 45 )
1
= 2
2

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