e^(x^2+5x+6)=1怎么解

e^(x^2+5x+6)=1怎么解 e^x=x+6怎么解! ∫ e^x-e^(-x)dx=e^x+e^(-x)|=e+1/e-2 （∫（0到x）t*e^t*sint dt）/x^6*e^x,求极限,x趋于0这样做对吗?=2x*x^2*e^(x^2)*sinx^2/6x^5*e^x+x^6*e^x=2x^5*e^(x^2)/e^x(6x^5+x^6)=2x^5{(e^(x^2)-1) +1}/{(e^x-1)+1}(6x^5+x^6)=2x^5(x^2+1)/(x+1)(6x^5+x^6)=2x^7+2x^5/7x^6+x^7+6x^5由于x趋于 这几道不定积分怎么解.1、Z（dx)/1+cos2、Z f(x)dx = Z (x)+c,则Z e^-x * f(e^-x)dx =3、f(x)=e^-x,则Q {f'(lnx)]/xdx=4、Q f(x)dx=xe^(2x)+c,则f(x)=5、Q [2x^2/(1+x^2)]dx=6、Q [3+x^2+x^3(开平方）/x^(1/2)]dxQ是不定积分符号,顺便 e^x-1=0怎么解? e^x=3/2怎么解 e^x=X怎么解啊? 怎么这个函数求导f(x)=[∣x∣^e(-x)] (x^2+(sin x)^2)^1/5 怎么证明D(X)=E(X^2)-[E(X)]^2和D(X)=E[X-E(X)]^2 解1/2e*x^2=lnx1/2e*x^2=lnxx怎么得出根号下e的? 2^x=3+x+e^x怎么解2^x表示是2的x方,e^x表示是e的x方 e^x=1/2 x怎么算. 积分ln(1+e^x)dx/e^x怎么解? y=e^x+1/e^x最小值怎么求 2e^x-e^(-x)=0 怎么做 积分1/((e^x+e^-x)^2)怎么求 y=[x(x+1)/(x+2)e^x]^1/3怎么求其微分.y={x(x+1)/[(x+2)e^x]}^1/3