limit mendekati 0 1-cos^2 3X / X sin 2X
Matematika
Kristiantheo
Pertanyaan
limit mendekati 0 1-cos^2 3X / X sin 2X
1 Jawaban
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1. Jawaban whongaliem
limit (1 - cos² 3x) / x .sin 2x = limit sin² 3x / x .sin 2x
x⇒0 x⇒0
= limit sin² 3x / x .sin 2x (x/x)
x⇒0
= limit (x / sin 2x ) (sin² 3x / x²)
x⇒0
= (1/2) (3²)
= 9/2
= 4 1/2