求函数y=(log2(x/3))(log2(x/4))在区间《2√2,8》上的最值

问题描述:

求函数y=(log2(x/3))(log2(x/4))在区间《2√2,8》上的最值

y=[log2(x)+log2(3)][log2(x)+log2(4)]
=[log2(x)+log2(3)][log2(x)+2)]
记:log2(x)=t,3/2