配套习题- 作差（商）比较大小 -【青果学院】

1/3单选题

难度：

1.已知a,b为实数，p=

-2ab+2

,q=2a-3,则p与q的大小关系是

A	pq
B	p>q
C	pq
D	p <q

正确答案：Qg==

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

2/3单选题

难度：

2.设f(n)=

(n

),比较f(n)与f(n+1)的大小为

A	f(n)f(n+1)
B
C	f(n)<f(n+1)
D	f(n)f(n+1)

正确答案：QQ==

6Kej77yaPGltZyB3aWR0aD00NiBoZWlnaHQ9NDIgc3JjPSJodHRwczovL3AxLnFpbmdndW8uY29tL0cxL00wMC84QS82My9yQkFDRkZNLWdEYUJjS0RVQUFBQ0NnSEVqOWsyMzgucG5nIj49PGltZyB3aWR0aD0xMjkgaGVpZ2h0PTQyIHNyYz0iaHR0cHM6Ly9wMS5xaW5nZ3VvLmNvbS9HMS9NMDAvOEEvNjMvckJBQ0ZGTS1nRGFSeW1mSEFBQUN3QzFuQUdNMjk0LnBuZyI+PGJyPuKItGYobik8aW1nIHdpZHRoPTE1IGhlaWdodD0yMSBzcmM9Imh0dHBzOi8vcDEucWluZ2d1by5jb20vRzEvTTAwLzhBLzYzL3JCQUNGRk0tZ0RiaHFwcGNBQUFBX1F3UmNFSTY3NC5wbmciPmYobisxKQ==

3/3单选题

难度：

3.设f(n)=

(n

), 则f(n)的最大值为

A	2
B	3
C
D	1

正确答案：Qw==

6Kej77ya5L2c5ZWG5rOV77yaPGltZyB3aWR0aD0xMTYgaGVpZ2h0PTQyIHNyYz0iaHR0cHM6Ly9wMS5xaW5nZ3VvLmNvbS9HMS9NMDAvOEEvNjIvckJBQ0ZGTS1nREt6aFlqWkFBQURIQmVNS0VBNTkwLnBuZyI+PGJyPuS9nOW3ruazlTxpbWcgd2lkdGg9NDIyIGhlaWdodD00MiBzcmM9Imh0dHBzOi8vcDIucWluZ2d1by5jb20vRzEvTTAwL0FDL0RCL3JCQUNFMU0tZ0RMUzdTQnBBQUFHSER4VmVDTTM2MC5wbmciPjxicj7iiLQ8aW1nIHdpZHRoPTQxIGhlaWdodD00MiBzcmM9Imh0dHBzOi8vcDEucWluZ2d1by5jb20vRzEvTTAwLzhBLzYzL3JCQUNGRk0tZ0RPUW1XdFNBQUFCdWpmMm9lbzA1NS5wbmciPjxicj4=