-1的2次方-1⼀2*【3*(-2⼀3)的2次方-(-1)的2008次方】+1⼀4÷ (-1⼀2)的3次方

2024-11-10 12:16:45
推荐回答(3个)
回答(1):

-1的2次方-1/2*【3*(-2/3)的2次方-(-1)的2008次方】+1/4÷ (-1/2)的3次方
=-1-1/2*(3*4/9-1)+1/4÷(-1/8)
=-1-1/2*1/3-2
=-3又6分之1

回答(2):

=-1²-(1/2)×[3×(-2/3)²-(-1)的2008次方]+(1/4)÷(-1/2)³
=-1-(1/2)×[(4/3)-1]+(1/4)×8
=-1-(1/6)+2
=5/6

回答(3):

(-1)²-1/2x[3x(-3/2)²-(-1)^2008]+1/4÷(-1/2)³
=1-1/2x(3x9/4-1)+1/4÷(-1/8)
=1-1/2x27/4-1/4x8
=1-27/8-2
=8/8-27/8-16/8
=-35/8