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Clearnote
Q&A
Senior High
Mathematics
請問 怎麼理解第一個解題關鍵
Mathematics
Senior High
3 monthsago
奇異果
請問
怎麼理解第一個解題關鍵
範例3]………… 08 = B-3-4+1 a b 10 已知a,b,c,d,e'f'g,h皆為實數,矩陣 cd01 經過列運算後化為矩陣 10 e f , 請選出正確的選項。(多選) g 00 (1) a b C d == h e f g h (2)向量=(a,b)與w=(fh)垂直 fax+by=0 0 (3)方程組 有無限多組解 \cx+dy=0 ax+by=0 (ex+fy=0 0 (4)方程組 與 的解相同 £ cx+dy=0 gx+hy=0 (5)方程組 ex+fy=1 gx+hy=1 的解為x=a+b,y=c+d 88 XAA-Y=8%A N -1 列運算 a 解題關鍵 (AI) (IA) .. e f 0 C d 2 題目給的已知是矩陣的條件,所以將選項中的方程組都化為矩陣乘法的形式來思考吧
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