Tolong bantu ya? nilai lim (x->pi) x^2 sin 2x / x-pi =
Ghinashoda
Lim x²sin2x x⇒π x - π = lim x².2sinxcosx . x x⇒π x - π x = lim x³Cosx x⇒π x - π = π³Cosπ π - π = -π³/0 = - tak terdefinisi
2 votes Thanks 7
acnologi
X^2 sin 2x /(x - pi) = = x^2 2 sin x cos x / ( x - pi) = x^2 2 sin x cos x / ( x - pi) * ( x + pi)/(x + pi) = x^2 2 sin x cos x * (x + pi) / (x^2 - pi^2) = x^2 2 sin x cos x * (x + pi) / ((x - pi)^2 + ( 2xpi)) tinggal subs : = pi^2 2 sin pi cos pi * (2 pi) / 2 pi^2 = 0
x⇒π x - π
= lim x².2sinxcosx . x
x⇒π x - π x
= lim x³Cosx
x⇒π x - π
= π³Cosπ
π - π
= -π³/0
= - tak terdefinisi
= x^2 2 sin x cos x / ( x - pi)
= x^2 2 sin x cos x / ( x - pi) * ( x + pi)/(x + pi)
= x^2 2 sin x cos x * (x + pi) / (x^2 - pi^2)
= x^2 2 sin x cos x * (x + pi) / ((x - pi)^2 + ( 2xpi))
tinggal subs :
= pi^2 2 sin pi cos pi * (2 pi) / 2 pi^2
= 0