(1)-1的4次方-(1-0.5)×3分之1×【2-(-3)的2次方】(2)【-3+(-5+|-4|)×(-2分之3)】÷(-2分之3)的3次方
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(1)-1的4次方-(1-0.5)×3分之1×【2-(-3)的2次方】(2)【-3+(-5+|-4|)×(-2分之3)】÷(-2分之3)的3次方
(1)-1的4次方-(1-0.5)×3分之1×【2-(-3)的2次方】
(2)【-3+(-5+|-4|)×(-2分之3)】÷(-2分之3)的3次方
(1)-1的4次方-(1-0.5)×3分之1×【2-(-3)的2次方】(2)【-3+(-5+|-4|)×(-2分之3)】÷(-2分之3)的3次方
1)1-0.5/3*(2-9)
=1-7/6=-1/6
2)(-3+(-1)*-2/3)÷(-8/27)
=(-3+2/3)÷(-8/27)
=-7/3÷(-8/27)
=63/8
第一题:-1的4次方-(1-0.5)*1/3*[2-(-3)的2次方]
=1-0.5×1/3×(2-9)
=1-1/6×7
=1-6/7
=1/7
第二题:2)(-3+(-1)*-2/3)÷(-8/27)
=(-3+2/3)÷(-8/27)
=-7/3÷(-8/27)
=63/8
)-1的4次方-(1-0.5)×3分之1×【2-(-3)的2次方】
=-1-1/2×1/3×(2-9)
=-1+7/6
=1/6
【-3+(-5+|-4|)×(-2分之3)】÷(-2分之3)的3次方
=【-3+(-1)×(-3/2)】÷(-3/2)³
=(-3+3/2)÷(-27/8)
=(-3/2)×(-8/27)
=4/9
4 2
-1 -(1-0.5)*3/1*【2-(-3)】
=1-0.5*3/1*25
=2/1*3/1*25
=6/1*25
=6/25
3
【-3+(-5+|-4|)*-2/3】/(-2/3)
=(-3+2/3)/(-2/3)
=2-6/4
=6/2
(1)原式=1-1/6*(-7)=1+7/6=13/6
(2)=(-3+3/2)÷(-27/8)
=4/9
1)-1的4次方-(1-0.5)×3分之1×【2-(-3)的2次方】
=1-5/30×(2-9)
=1-1/6×(-7)
=1+7/6
=13/6
2)【-3+(-5+|-4|)×(-2分之3)】÷(-2分之3)的3次方
= [-3-5+4×(-3/2)]×(-8/27)
=6×(-8/27)
=-16/9
希望能帮到你~