© examsiri.com
Question : 5 of 160
Marks:
+1,
-0
Solution:
|| 1 | bc+ad | b2c2+a2d2 |
| 1 | ca+bd | c2a2+b2d2 |
| 1 | ab+cd | a2b2+c2d2 |
| Apply the row operation
R2→R1 and
R3→R1 Solve the above determinant,
{(ca+bd)−(bc+ad)((a2b2+c2d2) −(b2c2+a2d2)) −((ab+cd)−(bc+ad))((c2a2+b2d2) −(b2c2+a2d2))} =(a−b)(a−c)(b−c)(b−d) (a−d)(c−d)
© examsiri.com
Go to Question: