作者coolbaby119 (小屈)
看板trans_math
标题[考古] 中兴93两题
时间Thu Jul 5 10:35:51 2007
3.证明 if a>=0,b>=0, then (a+b)^pi =<2^(pi-1) =<[2^(pi-1)]˙(a^pi+b^pi)
[Hint Consider b as a variable x]
u(x)
6.Suppose a fuction F is obtained by F(x)=S f(x.t) dt
a
且函数u可微分,f 和 fx 连续 Find a formula for F'(x)
该怎麽写呢?
谢谢><
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※ coolbaby119:转录至看板 Math 07/05 18:13