f(-x)=log4(4^(-x)+1)-kx
=log4[(4^x+1)/4^x]-kx
=log4(4^x+1)-x-kx
=log4(4^x+1)-(k+1)x
=log4(4^x+1)+kx=f(x)
=>-(k+1)=k
=>k=-1/2.
已知f(x)=log4(4^x+1)+kx(k为实数)是偶函数
已知f(x)=log4(4^x+1)+kx(k为实数)是偶函数
数学人气:367 ℃时间:2019-09-17 14:04:59
优质解答
我来回答
类似推荐
猜你喜欢
- 1看拼音写词语 zhǐ jú
- 2有since引导时间状语从句的句子中,主句的时态是否可用一般现在时态?
- 3what do you like to do on sunday?
- 4已知函数f(x)=loga(3x2-2ax)在区间【1/2,1】上是减函数,求实数a的取值范围
- 5词语的不同读音标出音调解释词语的意思
- 6You haven't finished your homework,have you?_____.Or I won't come out to play football.__
- 7有一堆稻谷,上面是圆锥形,下面是圆柱形,现量得圆柱的底面周长是6.28米,圆锥的高是0.3米,
- 8翻译作文 Today is sunday.It is sunny I don't go to school I want go shopping.
- 9用排比句说明理想的重要性
- 10冰心《繁星》,急用!