JEE Main2003MathematicsDeterminantsActual
If 1, , ^2 are the cube roots of unity, then = | array ccc 1 & ^n & ^ 2 n ^n & ^ 2 n & 1 ^ 2 n & 1 & ^n array | is equal to
Options
- A^2
- B0
- C1
Correct answer
B. 0
Step-by-step solution
Applying R ₁ R ₁+ R ₂+ R ₃ As, 1+ ^ n + ^ 2 n =0 ; =0