题目

(本题满分13分) 已知函数。 (1)若函数在上是单调递增函数,求实数的取值范围; (2)求函数在上的最大值。 答案:(本题满分13分) 解:(x)=+a (1)只要在x∈[0,2]上(x)≥0恒成立,a≥ 而∈[,1],∴a≥1                            (5分) (2)∵当x∈[0,2]时,∈[-1,-] ∴①当a≤时,(x)≤0,这时f(x)在[0,2]上单调递减,f(x)≤f(0)=1+ln3                                                He said he had spaghetti with his father on his birthday.A. a B. an C. the D. /
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