940264道相关试题

目标函数http://static.haoxue.com/tk/import/20150823152118/image023.png,变量http://static.haoxue.com/tk/import/20150823152118/image001.pnghttp://static.haoxue.com/tk/import/20150823152118/image002.png满足http://static.haoxue.com/tk/import/20150823152118/image510.png,则有(  )",

A.http://static.vko.cn/content/tk/import/20150823152118/image511.pnghttp://static.vko.cn/content/tk/import/20150823152118/image512.png

B.http://static.vko.cn/content/tk/import/20150823152118/image511.pnghttp://static.vko.cn/content/tk/import/20150823152118/image026.png无最小值

C.http://static.vko.cn/content/tk/import/20150823152118/image513.pnghttp://static.vko.cn/content/tk/import/20150823152118/image511.png

D.http://static.vko.cn/content/tk/import/20150823152118/image026.png既无最大值,也无最小值

下面说法正确的是(  ).",

A. http://static.vko.cn/content/tk/import/20150823152128/image005.png

B. http://static.vko.cn/content/tk/import/20150823152128/image006.png

C. http://static.vko.cn/content/tk/import/20150823152128/image002.png

D. http://static.vko.cn/content/tk/import/20150823152128/image007.png

设a,b,c大于0,那么正确的是( )",

A.++≤

B.++≥

C.++=

D.++<

http://static.haoxue.com/tk/import/20150823152132/image401.pnghttp://static.haoxue.com/tk/import/20150823152132/image642.png,且http://static.haoxue.com/tk/import/20150823152132/image326.png,则http://static.haoxue.com/tk/import/20150823152132/image868.pnghttp://static.haoxue.com/tk/import/20150823152132/image956.png的大小关系是( )",

A.http://static.vko.cn/content/tk/import/20150823152132/image957.png

B.http://static.vko.cn/content/tk/import/20150823152132/image958.png

C.http://static.vko.cn/content/tk/import/20150823152132/image959.png

D.http://static.vko.cn/content/tk/import/20150823152132/image959.png

http://static.haoxue.com/tk/import/20150823152132/image040.pnghttp://static.haoxue.com/tk/import/20150823152132/image065.png,则http://static.haoxue.com/tk/import/20150823152132/image066.pnghttp://static.haoxue.com/tk/import/20150823152132/image067.png的大小关系是( )",

A.http://static.vko.cn/content/tk/import/20150823152132/image068.png

B.http://static.vko.cn/content/tk/import/20150823152132/image069.png

C.http://static.vko.cn/content/tk/import/20150823152132/image070.png

D.http://static.vko.cn/content/tk/import/20150823152132/image071.png

用数学归纳法证明“Sn=http://static.haoxue.com/tk/import/20150823152137/image045.gif(n≥2且n∈N)时,”S2的值为(  ).",

A.http://static.vko.cn/content/tk/import/20150823152137/image046.gif

B.http://static.vko.cn/content/tk/import/20150823152137/image047.gif

C.http://static.vko.cn/content/tk/import/20150823152137/image048.gif

D.1

若x>1,则函数y=x+http://static.haoxue.com/tk/import/20150823152128/image030.pnghttp://static.haoxue.com/tk/import/20150823152128/image031.png的最小值为 (  ).",

A.16

B.8

C.4

D.非上述情况

http://static.haoxue.com/tk/import/20150823152132/image167.pnghttp://static.haoxue.com/tk/import/20150823152132/image168.pnghttp://static.haoxue.com/tk/import/20150823152132/image169.png,则http://static.haoxue.com/tk/import/20150823152132/image056.pnghttp://static.haoxue.com/tk/import/20150823152132/image057.pnghttp://static.haoxue.com/tk/import/20150823152132/image170.png的大小关系是( )",

A.http://static.vko.cn/content/tk/import/20150823152132/image108.png

B.http://static.vko.cn/content/tk/import/20150823152132/image107.png

C.http://static.vko.cn/content/tk/import/20150823152132/image171.png

D.http://static.vko.cn/content/tk/import/20150823152132/image109.png

利用数学归纳法证明不等式http://static.haoxue.com/tk/import/20150823152137/image088.gif<f(n) (n≥2,n∈N*)的过程中,由n=k变到n=k+1时,左边增加了(  )",

A.2项

B.k项

C.http://static.vko.cn/content/tk/import/20150823152137/image008.gif

D.http://static.vko.cn/content/tk/import/20150823152137/image069.gif

当x>0时,y=3x+http://static.haoxue.com/tk/import/20150823152128/image074.png的最小值为(  ) ",

A. http://static.vko.cn/content/tk/import/20150823152128/image051.pnghttp://static.vko.cn/content/tk/import/20150823152128/image075.png

B.3

C. http://static.vko.cn/content/tk/import/20150823152128/image076.pnghttp://static.vko.cn/content/tk/import/20150823152128/image077.png

D.4http://static.vko.cn/content/tk/import/20150823152128/image078.png