(1)-1(1-2)^4+/-2-3/-5
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(1)-1(1-2)^4+/-2-3/-5
(2)[1+(1-1/2)*1/3]除以(-3^2+2)
(3)(-1/6+3/4-1/12)*(-48)
(4)-2^2+3*(-1)^3-(-4)*5
化简下列各式
(1)(x-3y)-(y-2x)
(2)3x-[7x-(4x-3)-2x^2]
/-2-3/是-2-3的绝对值
(2)[1+(1-1/2)*1/3]除以(-3^2+2)
(3)(-1/6+3/4-1/12)*(-48)
(4)-2^2+3*(-1)^3-(-4)*5
化简下列各式
(1)(x-3y)-(y-2x)
(2)3x-[7x-(4x-3)-2x^2]
/-2-3/是-2-3的绝对值
(1)/-2-3/是什麼?
(2)[1+(1-1/2)*1/3]/(-3^2+2)
=[1+1/6]/(-9+2)
=(7/6)/(-7)
=-1/6
(3)(-1/6+3/4-1/12)*(-48)
=(-2+9-1)/12*(-48)
=6/12*(-48)
=-24
(4)-2^2+3*(-1)^3-(-4)*5
=-4-3+1024
=1017
(1)(x-3y)-(y-2x)
=x-3y-y+2x
=3x-4y
(2)3x-[7x-(4x-3)-2x^2]
=3x-[7x-4x+3-2x^2]
=3x-7x+4x-3+2x^2
=2x^2-3
(2)[1+(1-1/2)*1/3]/(-3^2+2)
=[1+1/6]/(-9+2)
=(7/6)/(-7)
=-1/6
(3)(-1/6+3/4-1/12)*(-48)
=(-2+9-1)/12*(-48)
=6/12*(-48)
=-24
(4)-2^2+3*(-1)^3-(-4)*5
=-4-3+1024
=1017
(1)(x-3y)-(y-2x)
=x-3y-y+2x
=3x-4y
(2)3x-[7x-(4x-3)-2x^2]
=3x-[7x-4x+3-2x^2]
=3x-7x+4x-3+2x^2
=2x^2-3
(1+1/2+1/3+1/4+1/5)*(1/3+1/4+1)-(1+1/3+1/4)*(1/2+1/3+1/4+1/5
-1/2,+1/3,-1/4,+1/5,-1/6,.
简算:(1+1/2+1/3+1/4)×(1/2+1/3+1/4+1/5)-(1+1/2+1/3+1/4+1/5)×(1/
提问题(1+1/2+1/3+1/4)×(1/2+1/3+1/4+1/5)-(1/2+1/3+1/4)×(1+1/2+1/
1 2 3 4 5
.1,2,3,4,5,
(1) 1,1/3,1/5,1/7,1/9 (2)- 1/2*1,1/2*2,- 1/2*3,1/2*4,-1/2*5
1+2+3-4-5+1+1+2+3=
/1/3-1/2/+/1/4-1/3/+/1/5-1/4/+.+/1/10-1/9/
(1-1/2^2)(1-1/3^2)(1-1/4^2)(1-1/5^2)(1-1/6^2)(1\1/7^2)(1-1/8
1 2 3 4 5=1
3/5-(1/2-1/4)计算,