-1²-[1又3/7+(-12)÷6]²×(-3/4)³

来源：学生作业帮助网编辑：六六作业网时间：2024/12/20 16:43:13

-1²-[1又3/7+(-12)÷6]²×(-3/4)³-1²-[1又3/7+(-12)÷6]²×(-3/4)³-1²-[1又3/

-1²-[1又3/7+(-12)÷6]²×(-3/4)³
-1²-[1又3/7+(-12)÷6]²×(-3/4)³

-1²-[1又3/7+(-12)÷6]²×(-3/4)³
-1²-[1又3/7+(-12)÷6]²×(-3/4)³
=-1-(1+3/7-2)²×(-27/64)
=-1-16/49×(-27/64)
=-1+27/196
=-169/196;