Q27 1 bc+ad b2c2+a2d2 1 ca+bd c2a2+b2d2 1 ab+cd a2b2+c2d
= (a-b)(a-c)(a-d)(b-c)(b-d)(c-d)
Solution
,
1 | bc+ad | b2c2+a2d2 |
1 | ca+bd | c2a2+b2d2 |
1 | ab+cd | a2b2+c2d |