计算1 /(x-2)÷4 /(4-x^2)
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计算1/(x-2)÷4/(4-x^2)计算1/(x-2)÷4/(4-x^2)计算1/(x-2)÷4/(4-x^2)1/(x-2)÷4/(4-x^2)=1/(x-2)×(4-x^2)/4=(2+x)(2
计算1 /(x-2)÷4 /(4-x^2)
计算1 /(x-2)÷4 /(4-x^2)
计算1 /(x-2)÷4 /(4-x^2)
1 /(x-2)÷4 /(4-x^2) =1 /(x-2)×(4-x^2)/4 =(2+x)(2-x)/4(x-2) = -(x+2)/4
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