化简:k-1/k²-4k+4÷1-k/k²-4的结果是( ) A、2-k/k+2 B、k+2/k-2 C、k+2/2-k D、k-2/k+2
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![化简:k-1/k²-4k+4÷1-k/k²-4的结果是( ) A、2-k/k+2 B、k+2/k-2 C、k+2/2-k D、k-2/k+2](/uploads/image/z/5957373-21-3.jpg?t=%E5%8C%96%E7%AE%80%3Ak-1%2Fk%26%23178%3B-4k%2B4%C3%B71-k%2Fk%26%23178%3B-4%E7%9A%84%E7%BB%93%E6%9E%9C%E6%98%AF%EF%BC%88+%EF%BC%89+A%E3%80%812-k%2Fk%2B2+B%E3%80%81k%2B2%2Fk-2+C%E3%80%81k%2B2%2F2-k+D%E3%80%81k-2%2Fk%2B2)
化简:k-1/k²-4k+4÷1-k/k²-4的结果是( ) A、2-k/k+2 B、k+2/k-2 C、k+2/2-k D、k-2/k+2
化简:k-1/k²-4k+4÷1-k/k²-4的结果是( ) A、2-k/k+2 B、k+2/k-2 C、k+2/2-k D、k-2/k+2
化简:k-1/k²-4k+4÷1-k/k²-4的结果是( ) A、2-k/k+2 B、k+2/k-2 C、k+2/2-k D、k-2/k+2
k-1/k²-4k+4÷1-k/k²-4
=(k-1)/(k-2)²÷ (1-k)/(k+2)(k-2)
=(k+2)/(2-k)
选 C