对所有实数x 、y ,若函数y=f(x),满足f(xy)=f(x)f(y),且f(0)不等于0,求f(2009)=( )
对所有实数x 、y ,若函数y=f(x),满足f(xy)=f(x)f(y),且f(0)不等于0,求f(2009)=( )
别人说是:
f(0) = f(0)*f(0) => f(0) = 1
f(0) = f(0) * f(2009) = f(2009) = 1
可是2009和0不是应该还要满足x和y的关系式吗?
别人说是:
f(0) = f(0)*f(0) => f(0) = 1
f(0) = f(0) * f(2009) = f(2009) = 1
可是2009和0不是应该还要满足x和y的关系式吗?
数学人气:272 ℃时间:2019-08-18 10:31:51
优质解答
f(0) = f(0*2009)=f(0) * f(2009) = f(2009) = 1
我来回答
类似推荐
猜你喜欢
- 1《论语十则》 在关于学习方法和学习态度方面,你还积累了哪些成语,请举出两例.
- 210平方分米+5平方分米4平方厘米=
- 3表示注意看的词语有哪些?
- 4My mather asked me,"What's the matter with you?"变为间接引语.请教名师
- 5写英文作文(6句话)很简单!
- 6英语翻译句子:他每天做作业到很晚,真是太勤奋了
- 7What thing do you think is the most important thing in your life?
- 8用方框中所给词或词组的适当形式填空,使短文正确、通顺,每词限用一次 (live ,dirty ,deve
- 9英语译句 今晚就要!
- 10在△ABC中,AB=AC,BD=CD,AD=AE,∠BAD=40°.求∠CDE的度数.