作者Webb17 (Webb)
看板trans_math
标题[考古] 政大考古题
时间Fri May 30 09:26:51 2008
b
1.if f is a linear function and 0<a<b, then ∫ f''(x)dx=
a
(A)0 其他答案不打了 答案写这个 不太懂
2.which of th following is an equation of the line
tangent to the grapg of f(x)=x^4+2x^2 at the
point where f'(x)=1?
(a)y=8x+5 (b)y=x+7 (c)y=x+0.763 (d)y=x-0.122 (e)y=x-2.146
答案是D 不太懂题目的意思
3.if 0<=k<π/2 and the area under the curve y=cosx from
x=k to x=π/2 is 0.1, then k=
(a)1.471 (b)1.414 (c)1.277 (d)1.120 (E)0.436
这个是要估计sink=0.9的k值吗? 如果是的话我算不出来...
答案是D
3题请大家帮我看一下 谢谢罗
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1F：推 GBRS:1.形如f(x)=cx+d的函数称为linear function 211.76.58.233 05/31 00:05
2F：→ GBRS:所以两次微分後为0,积分当然也是0 211.76.58.233 05/31 00:05