题目内容
(1)化简(0.027)-
-(-
)-2+(2
)
-(
-1)0-5iog545;
(2)若函数y=f(x)的定义域为[-1,1],求函数y=f(x+
)+•f(x-
)的定义域.
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(2)若函数y=f(x)的定义域为[-1,1],求函数y=f(x+
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(1)原式=[(0.3)3]-
-72+(
)
-1-45
=
-49+
-1-45=-90.
(2)
∴-
≤x≤
.
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=
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(2)
|
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