1.(-3)+(+2) 2.(+2)+(+1/2) 3.(-1)+(-3) 4.(-17/2)+6 5.(-3.5)+0 6.(-1/10)+0.1 7.(-1/2)+(-1/4)以上答案按题号均等于多少?
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![1.(-3)+(+2) 2.(+2)+(+1/2) 3.(-1)+(-3) 4.(-17/2)+6 5.(-3.5)+0 6.(-1/10)+0.1 7.(-1/2)+(-1/4)以上答案按题号均等于多少?](/uploads/image/z/1594682-26-2.jpg?t=1.%EF%BC%88-3%29%2B%28%2B2%29+2.%28%2B2%29%2B%28%2B1%2F2%29+3.%28-1%29%2B%28-3%29+4.%28-17%2F2%29%2B6+5.%28-3.5%29%2B0+6.%EF%BC%88-1%2F10%EF%BC%89%2B0.1+7.%EF%BC%88-1%2F2%EF%BC%89%2B%EF%BC%88-1%2F4%EF%BC%89%E4%BB%A5%E4%B8%8A%E7%AD%94%E6%A1%88%E6%8C%89%E9%A2%98%E5%8F%B7%E5%9D%87%E7%AD%89%E4%BA%8E%E5%A4%9A%E5%B0%91%3F)
1.(-3)+(+2) 2.(+2)+(+1/2) 3.(-1)+(-3) 4.(-17/2)+6 5.(-3.5)+0 6.(-1/10)+0.1 7.(-1/2)+(-1/4)以上答案按题号均等于多少?
1.(-3)+(+2) 2.(+2)+(+1/2) 3.(-1)+(-3) 4.(-17/2)+6 5.(-3.5)+0 6.(-1/10)+0.1 7.(-1/2)+(-1/4)
以上答案按题号均等于多少?
1.(-3)+(+2) 2.(+2)+(+1/2) 3.(-1)+(-3) 4.(-17/2)+6 5.(-3.5)+0 6.(-1/10)+0.1 7.(-1/2)+(-1/4)以上答案按题号均等于多少?
1.-1 2.5/2 3.-4 4.-2 5.-2.9 6.0 7.-3/4
采纳哦
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1.(-1/4)^-2;2.-4^-2;
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简单的分式化简1.(3x^2-5xy+2y^2)/(2x^2+3xy-5y^2)2.(x^2-3xy+2y^2)/(2x^2-3xy+2y^2)
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1.∫sec^3/2xtanxdx= 2.∫sin2xdx/根号(1+cos^2x)=
计算:1.(-x+2y+3z)(x-2y-3z) 2.[(x/2+3y)^2-(y/2+x)^2+(3x-2/y)^2-(x/2+3y)(3y-y/2)]÷x/2