[問卦] 為何一次微分等於零會有極大值?消失
小妹每次遇到要求極大值的問題
教我的人就叫我直接把他微分=0就好
我想說幹這也太神奇了
趕快回家研究原因
想了兩天沒想出答案 很傷心
而且遇到鞍點怎麼辦QQ
只好上來問卦 有人有八卦分享嗎嗚嗚
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