题目内容
.设函数且。
(Ⅰ)求的解析式及定义域。(Ⅱ)求的值域。
(Ⅰ)求的解析式及定义域。(Ⅱ)求的值域。
解:(Ⅰ) 所以
因为解得
所以函数的定义域为。······························5分
(Ⅱ)
所以函数的值域为····························10分
因为解得
所以函数的定义域为。······························5分
(Ⅱ)
所以函数的值域为····························10分
略
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