已知丨2a-1丨+丨5b-4丨=0,计算:(1)a的相反数与b的倒数的相反数的和;(2)a的绝对值与b的绝对值的和.
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![已知丨2a-1丨+丨5b-4丨=0,计算:(1)a的相反数与b的倒数的相反数的和;(2)a的绝对值与b的绝对值的和.](/uploads/image/z/5428236-12-6.jpg?t=%E5%B7%B2%E7%9F%A5%E4%B8%A82a-1%E4%B8%A8%2B%E4%B8%A85b-4%E4%B8%A8%3D0%2C%E8%AE%A1%E7%AE%97%EF%BC%9A%EF%BC%881%EF%BC%89a%E7%9A%84%E7%9B%B8%E5%8F%8D%E6%95%B0%E4%B8%8Eb%E7%9A%84%E5%80%92%E6%95%B0%E7%9A%84%E7%9B%B8%E5%8F%8D%E6%95%B0%E7%9A%84%E5%92%8C%EF%BC%9B%EF%BC%882%EF%BC%89a%E7%9A%84%E7%BB%9D%E5%AF%B9%E5%80%BC%E4%B8%8Eb%E7%9A%84%E7%BB%9D%E5%AF%B9%E5%80%BC%E7%9A%84%E5%92%8C.)
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已知丨2a-1丨+丨5b-4丨=0,计算:(1)a的相反数与b的倒数的相反数的和;(2)a的绝对值与b的绝对值的和.
已知丨2a-1丨+丨5b-4丨=0,计算:(1)a的相反数与b的倒数的相反数的和;(2)a的绝对值与b的绝对值的和.
已知丨2a-1丨+丨5b-4丨=0,计算:(1)a的相反数与b的倒数的相反数的和;(2)a的绝对值与b的绝对值的和.
已知丨2a-1丨+丨5b-4丨=0 ==> 2a -1 = 0,5b - 4 = 0 ==> a =1/2,b = 4/5 (1)a的相反数与b的倒数的相反数的和; -a + (-1/b) = -1/2 - 5/4 = - 7/4 (2)a的绝对值与b的绝对值的和 |a | + | b| = |1/2| + | 4/5| = 1/2 + 4/5 = 13/10