x^4/(x-1)^3的不定积分,

sxw_sxw 1年前 已收到1个回答 举报

seamen203 幼苗

共回答了19个问题采纳率:73.7% 举报

∫[x^4/(x-1)^3]dx
=∫[(x-1+1)^4/(x-1)^3]dx
=∫{[(x-1)^2+2(x-1)+1]^2/(x-1)^3}dx
=∫[(x-1)^4+4(x-1)^2+1+4(x-1)^3+2(x-1)^2+4(x-1)]/(x-1)^3}dx
=∫(x-1)dx+6∫[1/(x-1)]dx+4∫dx+4∫[1/(x-1)^2]dx
=(1/2)(x-1)^2+6ln|x-1|+4x-4/(x-1)+C.

1年前

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