摘要:例1.求值: . . . .
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例1.求下列函数的值域
(1)y=
(2)y=
(3)y=sinx+cosx+sinxcosx
(4)y=x+
(2≤x≤5)(5)y=
.
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(1)y=
| 1+sinx |
| 2+cosx |
| ex-e-x |
| ex+e-x |
(4)y=x+
| 1 |
| x |
| ||
| x+2 |