Your SlideShare is downloading. ×
Pengertian  perbandingan trigonometri
Upcoming SlideShare
Loading in...5
×

Thanks for flagging this SlideShare!

Oops! An error has occurred.

×

Saving this for later?

Get the SlideShare app to save on your phone or tablet. Read anywhere, anytime - even offline.

Text the download link to your phone

Standard text messaging rates apply

Pengertian perbandingan trigonometri

6,201
views

Published on

power point perbandingan trigonometri

power point perbandingan trigonometri

Published in: Education

1 Comment
3 Likes
Statistics
Notes
No Downloads
Views
Total Views
6,201
On Slideshare
0
From Embeds
0
Number of Embeds
2
Actions
Shares
0
Downloads
0
Comments
1
Likes
3
Embeds 0
No embeds

Report content
Flagged as inappropriate Flag as inappropriate
Flag as inappropriate

Select your reason for flagging this presentation as inappropriate.

Cancel
No notes for slide

Transcript

  • 1. PERBANDINGAN TRIGONOMETRI Tujuan Pembelajaran : Setelah mengikuti proses pembelajaran diharapkan siswa dapat: 1.Menjelaskan pengertian perbandingan trigonometri suatu sudut segitiga siku-siku. 2.Menentukan nilai perbandingan trigonometri suatu sudut dari sisi-sisi segitiga siku-siku.
  • 2. pengertian PERBANDINGAN TRIGONOMETRI Perbandingan fungsi2 trigonometri denganmenggunakan x,y dan r. Fungsi trigonometriyang dimaksud adalah: Fungsi sinus, fungsi cosinus, dan fungsitangen
  • 3. Menentukan NilaiPerbandingan Trigonometri Perhatikan segitiga ABC siku-siku di B C sisi depan ∠A BC a 1. Sinus α = = = sisi miring AC b sisi samping ∠A AB c 2. Cosinus α = = = sisi miring AC b b a sisi depan ∠A BC a 3. Tangen α = = = sisi samping ∠A AB c αA B c
  • 4. Cosec α, sec α, dan cot α berturut-turut merupakan kebalikan dari sin α, cos α dan tan α Cosec α, sec α, dan cot α berturut-turut merupakan kebalikan dari sin α, cos α dan tan α sisi miring AC b 1.cosecα = = sisi depan∠A BC a = 2. Sec α = sisi miring = AC b = sisi samping∠A AB c sisi samping ∠A AB c = = 3. Cot α = sisi depan ∠A BC a
  • 5. Contoh 1Berdasarkan gambar di Csamping. Tentukan nilai dari:a. sin α 13 12 cm cmb. cos αc. tan α α A 5 cm B
  • 6. Pembahasan C y = 12a. sin α = r 13 13 x 5 12 cm =b. cos α = cm r 13 y = 12 αc. tan α = x 5 A 5 cm B
  • 7. Contoh 2Berdasarkan gambar di Csamping Tentukan nilaidari : 8 cma. sin αb. cin α αc. tan α A B 6 cm
  • 8. Pembahasan C BC = √ 62 + 82 = √ 100 BC = 10 cm. y 8 10 = a. sin α = r cm8 cm 10 x = 6 α b. cos α = r 10 A 6 cm B y = 8 c. tan α = x 6
  • 9. Latihan Soal C1. Berdasarkan gambardi samping Tentukannilai dari : 5 cm 4 cma. sin αb. cos α α A 3 cm Bc. tan α
  • 10. 2. Berdasarkan gambar di Csamping. Tentukan nilai dari:a. sin α 12 cmb. cos αc. tan α α A 9 cm B
  • 11. PR