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非负数就是正数和零的总称,其具体表现为|x|≥0,算术根x~(1/2)≥0,偶次幂x~(2n)≥0(n是自然数).下面我们应用非负数来解题.
Non-negative numbers are the general term for positive numbers and zeros, which are expressed as | x | ≥0, the arithmetic roots x ~ (1/2) ≥0, the even power x ~ (2n) ≥0 (n is a natural number) Apply non-negative numbers to solve the problem.