如果-a^[m-3]b与3/1ab[4n]同类项,且m,n互为倒数,求n-mn-3(4/m-4)-4/1m的值m-3=1;m=4；1=4n；n=1/4;n-mn-3(4/m-4)-4/1m=n-1-3m/4+12-m/4=11-m+n=11-4+1/4=7+1/4=7又4分之1；很高兴为您解答,skyhunter002为您答疑解惑...