
Rumus Trigonometri Sudut Ganda
Presentation
•
Mathematics
•
11th Grade
•
Practice Problem
•
Medium
Juliani Juliani
Used 7+ times
FREE Resource
10 Slides • 6 Questions
1
Oleh:
Juliani, S.Pd
2
TUJUAN PEMBELAJARAN
Setelah mempelajari materi ini, siswa dapat:
Menjelaskan rumus trigonometri sudut ganda
Menggunakan rumus trigonometri sudut ganda
Menjelaskan rumus trigonometri sudut pertengahan
Menggunakan rumus trigonometri sudut pertengahan
3
4
Menggunakan identitas kosinus jumlah dua sudut, diperoleh sebagai berikut:
5
Menggunakan identitas tangen jumlah dua sudut, diperoleh sebagai berikut:
6
contoh 1:
7
Contoh 2:
8
RUMUS TRIGONOMETRI SUDUT PERTENGAHAN
A. RUMUS
B. RUMUS
C. RUMUS
9
BERSIAP UNTUK LATIHAN SOAL
10
Multiple Select
Pilihlah pernyataan-pernyataan yang berikut berikut ini...
sin30°=2sin15°cos15°
sin30°=2sin15°cos45°
cos30°=cos215°+sin215°
cos30°=2cos215°+sin215°
cos30°=2cos215°−1
11
Multiple Choice
Apabila sinx=54 , maka nilai dari cos2x adalah ....
−2524
−724
−257
257
2524
12
Multiple Choice
Jika cosA=178 dan A sudut lancip, maka nilai dari sin2A adalah ....
236219
289240
289120
11964
12932
13
Multiple Choice
Jika tana>0 , tan2a=−43 dan tan(a−b)=21 , maka nilai tan2a−tan2b= ....
-40
-20
8
20
60
14
Multiple Choice
Diketahui tan 21A=p , dengan A merupakan sudut lancip. Nilai cos A adalah ...
p2+12
p2+14
p2+12p
p2+1p2−1
1+p21−p2
15
Open Ended
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Oleh:
Juliani, S.Pd
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