Question

用洛必达法则求极限lim(x趋于0+) x^sinx

Answer 1

sin x ln x = ln x / (1/sin x) 当x-->0+时,ln x / (1/sin x) = 0/0 型的不定式,可用罗必大法则计算它的极限：即：lim(x-->0+) ln J = lim(x-->0+) (1/x) / (- cos x / sin^2 x) = lim(x-->0+) - sin^2 x /...