[線代] 請問一題簡單的線代
對於任意實數a,b ,
定義a○b=a+a-ab,
對演算O,-3的逆元素是多少
這一題的解法是
(-3)oA=0嗎??
還是
(-3)oA=1??
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03/25 23:50, , 1F
03/25 23:50, 1F
→
03/25 23:51, , 2F
03/25 23:51, 2F
→
03/25 23:52, , 3F
03/25 23:52, 3F
推
03/26 10:31, , 4F
03/26 10:31, 4F
→
03/26 18:26, , 5F
03/26 18:26, 5F