[問題]你的問題
由 tangpakchiu 於 星期日 一月 21, 2007 5:44 pm
#ed_op#DIV#ed_cl#'所以(a^2+1/a^2)+(b^2+1/b^2)+(c^2+1/c^2)≧3*(3^2+1/3^2)=82/3',#ed_op#/DIV#ed_cl##ed_op#DIV#ed_cl# #ed_op#/DIV#ed_cl##ed_op#DIV#ed_cl#雖然能證明式子大過等於82/3...但你能確保它也大過83/3嗎???#ed_op#/DIV#ed_cl##ed_op#DIV#ed_cl# #ed_op#/DIV#ed_cl##ed_op#DIV#ed_cl#或者可以由不等式數線上看,線上有82/3,100/3,0這3點(0在線的最左邊)。題目是要證明由100/3到0的範圍都成立.your answer only proves that 由82/3到0到正確,但由100/3到82/3這段呢??還沒有證明啊....#ed_op#/DIV#ed_cl#