lim x→0 (cot x)^tan 2x=

lim x→0 (cot x)^tan 2x= lim(1+3tan²x)^cot²x (x→0) lim(x→0)(1+3tan^2(x))^cot^2(x)=? 求lim(x->0)(1+3(tan^2)x)^((cot^2)x) lim cot/linx x趋近0+0 求极限：求极限：x→0时求极限Lim （1+3tan²x）⌒cot²x幂 x趋向0 lim(cot x- 1/x)=? 求lim（x→0) ( x cot x-1)／x²; lim(x→0)tan(x)ln(1+x)=? lim (arcsinx/x)^{[cot(x)]^2} x→0如题求极限 lim x趋近0 cot（x）求xcotx lim(x趋向0)ln cot x|lnx等于? lim(cosx)^cot^2x当x趋近于0 求lim(x->1)(1-X)tan(πx/2)的极限因为当x→1时,cot(πx/2)=tan(π/2-πx/2)=tan[(1-x)π/2]～(1-x)π/2所以lim(1-x)tan(πx/2)=lim(1-x)/cot(πx/2)=lim(1-x)/[(1-x)π/2]=2/π解释下这个cot(πx/2)=tan(π/2-πx/2)=tan[(1-x)π/2]～(1-x)π/2洛 求极限lim┬(x→0)?〖(tan?x lim (x→0) [tan( π/4 - x )]^(cotx)=? 求极限lim(x→0)(cosx)^（cot²x） x趋向1负时,求lim【ln(1-x)+tan派/2*x】/cot派*x,谢谢