Jawab:
- ½ √2
Penjelasan dengan langkah-langkah:
cos 225°
= cos (180° + 45°)
= - cos 45°
= - ½ √2
1-1+2+3+10+123+88+1911+293-1777+12001+373901+
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Jawab:
- ½ √2
Penjelasan dengan langkah-langkah:
cos 225°
= cos (180° + 45°)
= - cos 45°
= - ½ √2
Penjelasan dengan langkah-langkah:
1-1+2+3+10+123+88+1911+293-1777+12001+373901+