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数学
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设f(X)=根号下1-x^2+Ln(X_1\2)求f(X)的定义域
人气:139 ℃ 时间:2020-05-19 11:20:15
解答
f(X) = √(1-x^2) + ln(x-1/2)
根号下无负数:1-x^2≥0,x^2≤1,-1≤x≤1
零和负数无对数:x-1/2>0,x>1/2
∴1/2<x≤1
(1/2,1】
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