2x2二階矩陣行列式計算器對角線展開: |a1 b1| =a1b2-a2b1 |a2 b2| |a1 b1 c1| |a2 b2 c2|=a1b2c3+b1c2a3+c1a2b3-a3b2c1-b3c2a1-c3a2b1 |a3 b3 c3|
確定! 回上一頁