求函数y=tan(3x-π/3)的定义域、值域、并指出它的周期性、奇偶性、单调性...我算的是:定义域(x"竖线"x∈R,x≠5π/18+kπ/3, k∈Z),值域R,周期是π/3,奇函数,在(-5π/18+kπ/3,5π/18+kπ/3).谁看下哪不对?答
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求函数y=tan(3x-π/3)的定义域、值域、并指出它的周期性、奇偶性、单调性...我算的是:定义域(x"竖线"x∈R,x≠5π/18+kπ/3, k∈Z),值域R,周期是π/3,奇函数,在(-5π/18+kπ/3,5π/18+kπ/3).谁看下哪不对?答
求函数y=tan(3x-π/3)的定义域、值域、并指出它的周期性、奇偶性、单调性...
我算的是:定义域(x"竖线"x∈R,x≠5π/18+kπ/3, k∈Z),值域R,周期是π/3,奇函数,在(-5π/18+kπ/3,5π/18+kπ/3).谁看下哪不对?
答案上说是非奇非偶,我想的是括号里是-π/3而周期也是π/3,所以我想应该是tan(3x)吧,所以是奇函数,不知道对不???
求函数y=tan(3x-π/3)的定义域、值域、并指出它的周期性、奇偶性、单调性...我算的是:定义域(x"竖线"x∈R,x≠5π/18+kπ/3, k∈Z),值域R,周期是π/3,奇函数,在(-5π/18+kπ/3,5π/18+kπ/3).谁看下哪不对?答
定义域(x"竖线"x∈R,x≠5π/18+kπ/3,k∈Z),对
值域R,对
周期是π/3,对
奇函数,错,这个是非奇非偶函数
f(5π/18)无意义,f(-5π/18)有意义
不满足 f(-x)=f(x)或f(-x)=-f(x)
(-5π/18+kπ/3,5π/18+kπ/3).错
增区间 kπ-π/2