Question

求不定积分t^2/(t^4-t^2+1)dt 如题,

Answer 1

- atan(x/2 - (3^(1/2)*x*i)/2)*((3^(1/2)*i)/6 - 1/2) + atan(x/2 + (3^(1/2)*x*i)/2)*((3^(1/2)*i)/6 + 1/2)
题目计算太复杂不适合手算