Jawab:
Penjelasan dengan langkah-langkah:
fungsi
f(x) = 2 sin x - 1
memotong sumbu x , f(x) = 0
2 sin x - 1= 0
2 sin x = 1
sin x = 1/2
sin x = sin 30
x = 30°
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Jawab:
Penjelasan dengan langkah-langkah:
fungsi
f(x) = 2 sin x - 1
memotong sumbu x , f(x) = 0
2 sin x - 1= 0
2 sin x = 1
sin x = 1/2
sin x = sin 30
x = 30°