25杨超三大计算 参考答案【公众号：小盆学长】免费分享.pdf

汉考研数学三大计算参考答案3.3利用分部积分法求不定积分1223.4有理函数的积分1343.5三角函数的积分.1403.6与递推有关的一组积分1432考研数学三大计算参考答案x-3+2x-1-112.lim(-1)2+1=-1.x2+1反+113.lim=0.t+2.x+31+2.x14.imx-3=0.x/1+sinx+cos21+0115.limx+1十1+14.x3-2x2+x116.im3x2+2x21x2-317.lim-1=2-3x2x2+x+13十27x2+48imx-3=-818.lim19.lim6+8=limg1im-2_2x-4x2-5x+4x4x-130m(2x）=22(2）-()-x-2强化篇x2-1+二品=四.1m2x-r-=1im2x+10c-x2-1112m2-12-2x x23.lim(x-1)(x-2)(x-3)(x-4)(x-5)(5x-1)52第一章求极限(1-）(1-)(1-2)(1-)(1-)-lim(6-)1克=31254.lim(2x-3)20(3x+2)30(2.x+1)50=limr-e+50”-()产2场(x-2)2-十四x+2)-2y包05.limx2-4W6.x+x+IV66.limx一，/3x+23一反1+证+红反+元+元I7.lim=limx十o/2x+1x+十ooV2+I21+sinasin lim1+08.lim-sin x1-sin1-01.(2)-a-+11+x+x2-im（1-x3-1-x3儿(x-1)(x+2)+x一2=1ima二x)0十x十x=m1-x3x+2=一m+r十x=-110.ma+202m+33+0-m(1+2）)(2+)(3+)=611.lim arccos()=lim arccos