Jawab:
Penjelasan dengan langkah-langkah:
Sin 105° = sin (60° + 45°)
= sin 60° cos 45° + cos 60° sin 45°
= (1/2 akar 3) (1/2 akar2) + (1/2) (1/2 akar2)
= (1/4) akar 6 + (1/4) akar 2
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Jawab:
Penjelasan dengan langkah-langkah:
Sin 105° = sin (60° + 45°)
= sin 60° cos 45° + cos 60° sin 45°
= (1/2 akar 3) (1/2 akar2) + (1/2) (1/2 akar2)
= (1/4) akar 6 + (1/4) akar 2