Jawaban:
Kita bisa memfaktorkan penyebut menjadi sin x + cos x.
Maka,
lim x → 0 sin x / (sin x + cos x) = lim x → 0 [1 / (1 + (cos x / sin x)]
lim x → 0 [1 / (1 + (cos x / sin x)] = lim x → 0 (-sin x / (cos x - sin x))
lim x → 0 (-sin x / (cos x - sin x)) = lim x → 0 (-sin x / -sin x) = **1**
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Jawaban:
Kita bisa memfaktorkan penyebut menjadi sin x + cos x.
Maka,
lim x → 0 sin x / (sin x + cos x) = lim x → 0 [1 / (1 + (cos x / sin x)]
lim x → 0 [1 / (1 + (cos x / sin x)] = lim x → 0 (-sin x / (cos x - sin x))
lim x → 0 (-sin x / (cos x - sin x)) = lim x → 0 (-sin x / -sin x) = **1**