来自刘南平的问题
①1/(2+√2)+1/(3√2+2√3)+1/(4√3+3√4)+...+1/(2007√2006+2006√2007)②求y=1-2x+2√(4x-3)的最大值
①1/(2+√2)+1/(3√2+2√3)+1/(4√3+3√4)+...+1/(2007√2006+2006√2007)
②求y=1-2x+2√(4x-3)的最大值
1回答
2020-07-29 19:04