diketahui f(x) = cos x - 1 jika x = π/3
Matematika
nabilaputri1391
Pertanyaan
diketahui f(x) = cos x - 1 jika x = π/3
2 Jawaban
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1. Jawaban Zerochance324
cos x - 1
cos 60 - 1
0.5 - 1
- 0.5 -
2. Jawaban julian97
langsung subtitusiin aja kerana x sudah diketahui
x=phi/3=180/3=60°
f(x)= cosx-1
f(phi/3)=cos (phi/3)-1
=cos 60°-1
= 1/2 - 1
=-1/2