Question

Prove the determinant value as zero without expanding the determinant, (i) √23 + √3 √5 √5 √15 + √46 5 √10 3 + √115 √15 5 (3 Marks) (ii) 1 2 3 4 2 3 4 5 3 4 5 6 4 5 6 3 (3 Marks) (iii) (2 + 2) (2 − 2) 1 (3 + 3) (3 − 3) 1 (4 + 4) (4 − 4) 1 (3 Marks) (iv) 1 1 1 , where A, B, C are angles of a triangle. (3 Marks

Answer 1

Answer:

y5uu588888888888888888888888

Answer 2

Answer:

1. ,

Step-by-step explanation:

save this answer quickly