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i still need help on this...integrate (-2)/(xln^4(x) dx...should i be using substitution ...if yes then wut should i substitute? plz help me..thanks in advanced!

at is wrong with u= 1/x and dv= dx/ln^4(x) ?

remember d/dx (lnx)^-n= (-n/x)*lnx)^(n-1)

okey thank you...i got it now

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