答:
1.若g=u,积分得Vex在0到正无穷发散,积分值是无穷大.
2.若g≠u,积分得:V/(g-u)e^((g-u)x)
若g-u>0即g>u,发散,积分是无穷大.
若g∞e^((g-u)x)=0,所以积分值是0-V/(g-u)=V/(u-g)