已知M的相反数是0.2的倒数,求M的值(列式计算) 已知M与N互为相反数,a与b互为相反数,a与 b互为倒数求2(m+n)*a/b-3ab的值
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![已知M的相反数是0.2的倒数,求M的值(列式计算) 已知M与N互为相反数,a与b互为相反数,a与 b互为倒数求2(m+n)*a/b-3ab的值](/uploads/image/z/5038995-3-5.jpg?t=%E5%B7%B2%E7%9F%A5M%E7%9A%84%E7%9B%B8%E5%8F%8D%E6%95%B0%E6%98%AF0.2%E7%9A%84%E5%80%92%E6%95%B0%2C%E6%B1%82M%E7%9A%84%E5%80%BC%EF%BC%88%E5%88%97%E5%BC%8F%E8%AE%A1%E7%AE%97%EF%BC%89+%E5%B7%B2%E7%9F%A5M%E4%B8%8EN%E4%BA%92%E4%B8%BA%E7%9B%B8%E5%8F%8D%E6%95%B0%2Ca%E4%B8%8Eb%E4%BA%92%E4%B8%BA%E7%9B%B8%E5%8F%8D%E6%95%B0%2Ca%E4%B8%8E+b%E4%BA%92%E4%B8%BA%E5%80%92%E6%95%B0%E6%B1%822%EF%BC%88m%2Bn%EF%BC%89%2Aa%2Fb-3ab%E7%9A%84%E5%80%BC)
已知M的相反数是0.2的倒数,求M的值(列式计算) 已知M与N互为相反数,a与b互为相反数,a与 b互为倒数求2(m+n)*a/b-3ab的值
已知M的相反数是0.2的倒数,求M的值(列式计算) 已知M与N互为相反数,a与b互为相反数,a与 b互为倒数
求2(m+n)*a/b-3ab的值
已知M的相反数是0.2的倒数,求M的值(列式计算) 已知M与N互为相反数,a与b互为相反数,a与 b互为倒数求2(m+n)*a/b-3ab的值
M=-(1÷0.2)=-5
2(m+n)× a/b - 3ab=0-0=0