Rangkuman trigonometri bagian 1 .pdf
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Original filename: Rangkuman trigonometri bagian 1.pdf
Title: Microsoft Word - Rangkuman nilai perbandingan trigonometri.docx
Author: Ita Chan
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KESIMPULAN
Rangkuman SUDUT BERELASI
sin(90 0 ) cos
sin(1800 ) sin
sin( 180 0 ) sin x
0
cos( 900 ) sin
0
cos(180 ) cos
cos(180 ) cos
tan(1800 ) tan
tan(180 0 ) tan
tan(900 ) cot
1
) cos
2
1
cos( ) sin
2
1
tan( ) cot
2
sin(
sin( ) sin
cos( ) cos
sin( ) sin
tan( ) tan
cos( ) cos
tan( ) tan
0
sin(360 ) sin
0
cos( 360 ) cos
sin cos( 90 0 )
sin(2700 ) cos
cos sin( 90 0 )
cos( 2700 ) sin
0
tan(360 ) tan x
sin( 2 ) sin
cos( 2 ) cos
tan( 2 ) tan
sin sin
sin( k .3600 ) sin
cos cos
tan tan
cos( k .360 0 ) cos
tan( k .360 0 ) tan
1800
3600
Kesimpulan ::1. fungsi trigonometri
2. fungsi trigonometri
tan( 2700 ) cot
tan cot( 90 )
1
sin( ) cos
2
1
cos( ) sin
2
1
tan( ) cot
2
0
90 0
270 0
3
sin( ) cos
2
3
cos( ) sin
2
3
tan( ) cot
2
sin( k .2 ) sin
cos( k .2 ) cos
tan( k .2 ) tan
nama tetap
tanda sesuai kuadran
nama berubah
tanda sesuai kuadran
Contoh Soal :
Tentukan nilai : a. sin 2250 , b. sin 1200
Jawab :
a. sin 225 0 sin(180 0 45 0 ) sin 45 0 2
2
| b. sin 120 0 sin(180 0 60 0 ) sin 60 0 3
2
TUGAS!!
Kerjakan soal-soal berikut ini pada buku tugas kalian, kumpulkan!
Ubah perbandingan trigonometri ini menjadi perbandingan trigonometri sudut lancip ,hitung
Tentukan nilai dari :
(soal no 6 – 10):
1. cos 240
4. tan 135
0
2.
cos 150
5. tan 300
7. cos 240
3.
sin 300
6. tan 120 0
8. cos -135 0
9. sin -45 0
10. tan 390 0

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