[微分] 恆等式微分問題
x^2=x.x=(x+x+x+...+x)
各等式微分後..
2x=x+x==(1+1+1++...+1)
^^^^^^^^^^^^^^^^^^^^^^^^^
我知道1+1那是錯的
請問為什麼錯?
如何修改? 微分?
謝謝
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※ slps9061316:轉錄至看板 Math 05/08 23:05
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