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f(t)=kt for all t, where k is a constant, and f(3)=1/2Column A
f(t)=kt for all t, where k is a constant, and f(3)=1/2Column A
游客
2024-01-12
21
管理
问题
f(t)=kt for all t, where k is a constant, and f(3)=1/2
Column A Column B
k f(1)
选项
A、if the quantity in Column A is greater
B、if the quantity in Column B is greater
C、if the two quantity are equal
D、if the relationship cannot be determined from the information given
答案
C
解析
对所有t有f(t)=kt,其中k是常数,且f(3)=1/2
解:本题的正确答案为(C)。此题只须将t=1代入f(t)表达式:f(1)=k×1=k
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