Jawabanmu

Jawaban paling cerdas!
2014-04-10T16:29:37+07:00
1. lim x->0 (1-cos^2 3x)/(x sin 2x) = (sin^2 3x)/(x sin 2x) = (3x)^2/(2x^2) = (9x^2)/(2x^2) = 9/2 2. lim x-> 0 (1-cos x)/(tan^2 2x) = (2sin^2 1/2x)/(tan^2 2x) =(2/4 x^2)/4x^2 =(1/2)/4 =1/8 3. lim x-> 0 (3x^2)/(1- cos x) =(3x^2)/(2sin^2 1/2x) =(3x^2)/(2/4 x^2) =3/(1/2) =6 cmiiw
8 3 8
(1-cos x) = (2sin^2 1/2x) dituruninnya dari mana?