1⼀x^2+3x-4dx

1/x^2+3x-4dx
2025-05-07 23:22:06
推荐回答(1个)
回答1:

∫[1/(x²+3x-4)]dx
=(1/5)∫[1/(x-1) -1/(x+4)]dx
=(1/5)[ln|x-1|-ln|x+4|] +C
=[ln|(x-1)/(x+4)|]/5 +C