1∮ x^2/1+e^x dx -1
热心网友
原式=∮(1,0)x^2/1+e^x dx+∮(0,-1)x^2/1+e^x dx求第二部分时令x=-u ,可得 ∮(0,-1)x^2/1+e^x dx=∮(1,0)e^x*x^2/1+e^x dx所以原式=∮(1,0)x^2dx=1/3
1∮ x^2/1+e^x dx -1
原式=∮(1,0)x^2/1+e^x dx+∮(0,-1)x^2/1+e^x dx求第二部分时令x=-u ,可得 ∮(0,-1)x^2/1+e^x dx=∮(1,0)e^x*x^2/1+e^x dx所以原式=∮(1,0)x^2dx=1/3