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单选题
函数
的定义域是 ( )
A.
B.
C.
D.
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学科:
中职数学普测专题
时间:
2024-02-25 23:58:23
相关题目
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题目1
单选题
下列函数中,在区间<img src="https://tihai-oss-cloud.itihey.com/img/18cc9961cc23f7c0bfd4adc12b82e925.png">内单调增加的是( )
A. <img src="https://tihai-oss-cloud.itihey.com/img/a693f74a6ab654d6fc05972113f41041.png">
B. y=x2
C. <img src="https://tihai-oss-cloud.itihey.com/img/d91c9ee8800867e6c9f4ea8d02f85958.png">
D. <img src="https://tihai-oss-cloud.itihey.com/img/2147e20b9141d3074908d02eab8af4a7.png">
题目2
单选题
已知函数<img src="https://tihai-oss-cloud.itihey.com/img/835f7d84c98ce1ca943857a0bcc2fe74.png">,则该函数的最小值为( )
A. 1
B. -1
C. -2
D. 0
题目3
单选题
函数<img src="https://tihai-oss-cloud.itihey.com/img/122c53486b96898ba9dcdf2fe1052163.png">的定义域为( )
A. (-∞,1]
B. [0,1]
C. (-∞,0]∪[1,+∞)
D. [0,+∞)
题目4
单选题
已知函数<img src="https://tihai-oss-cloud.itihey.com/img/77fda3f80b491f39355384f36237c9e9.png">是偶函数,则( )
A. <img src="https://tihai-oss-cloud.itihey.com/img/cc9652a6adddc2078adb51104b165182.png">
B. <img src="https://tihai-oss-cloud.itihey.com/img/20839b3639d67130a0e0ce6b2568d49e.png">
C. <img src="https://tihai-oss-cloud.itihey.com/img/10b039923c5319c30abaae6fcb586e07.png">
D. <img src="https://tihai-oss-cloud.itihey.com/img/073cfd47e4eef016db5b58b126f96705.png">
题目5
单选题
函数<img src="https://tihai-oss-cloud.itihey.com/img/0abb431ec5f6f7013e5c41dac589603b.png">的定义域是 ( )
A. <img src="https://tihai-oss-cloud.itihey.com/img/1f6662313ffe5b37d60970e6c322b107.png">
B. <img src="https://tihai-oss-cloud.itihey.com/img/80198b5c564f88d117d994f056e73f19.png">
C. <img src="https://tihai-oss-cloud.itihey.com/img/d0029940b91a9f675039dc31200707ad.png">
D. <img src="https://tihai-oss-cloud.itihey.com/img/020ef87ca21db93bc170bea45f87b53c.png">
题目6
单选题
已知<img src="https://tihai-oss-cloud.itihey.com/img/8189741342f215d937bef556d7471fae.png">是偶函数,且<img src="https://tihai-oss-cloud.itihey.com/img/65f33ecc8ffb01f5ef8cb6dc14e41f4d.png">,则<img src="https://tihai-oss-cloud.itihey.com/img/2d8144cc2a1470bec623c28fee9a6f00.png">=( )
A. -2017
B. 2017
C. 1003
D. -1003
题目7
单选题
若f(x)在区间<img src="https://tihai-oss-cloud.itihey.com/img/3ac958da88ddc9dc445d8086a27819c4.png">内是奇函数,且f(-2)=8,则f(2)=( )
A. 不确定
B. ±8
C. 8
D. -8
题目8
单选题
下列函数为偶函数的是( )
A. <img src="https://tihai-oss-cloud.itihey.com/img/5a06224f3b983c599eb87581cf6b3ba7.png">
B. <img src="https://tihai-oss-cloud.itihey.com/img/7230e8b94eb3da1484e7be27a3e76516.png">
C. <img src="https://tihai-oss-cloud.itihey.com/img/efc487b0a408ee0b639a2f043062b695.png">
D. <img src="https://tihai-oss-cloud.itihey.com/img/0e8e96b75efca246eea022089b5c89f4.png">
题目9
单选题
要使函数<img src="https://tihai-oss-cloud.itihey.com/img/fd187215f9d32b1fa44f2dbda79b8ddd.png">有意义,则x的取值范围是( )
A. <img src="https://tihai-oss-cloud.itihey.com/img/752705bf5c69ccba60be1f84abfa2e7f.png">
B. <img src="https://tihai-oss-cloud.itihey.com/img/f73b8c753006822524cc2a99528d302d.png">
C. R
D. <img src="https://tihai-oss-cloud.itihey.com/img/8b00dcffe56a4a679ddae5bd25b3e92b.png">
题目10
单选题
已知函数y=f(x)是R上的偶函数,且在区间(0,+∞)内是减函数,那么它在区间(-∞,0)内是( )
A. 增函数
B. 没有单调性
C. 都有可能
D. 减函数
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