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```
Let w be a complex number such that 2w + 1 = z where z = sqrt(–3) . If |1 1 1 | |1 -w^2– 1 w^2 | = 3k, |1 w^2 w^7 | then k is equal to :- (1) 1 (2) –z (3) z (4) –1 Note : This is a determinant: |1 1 1 | |1 -w^2– 1 w^2 | = 3k, |1 w^2 w^7 |
Let w be a complex number such that 2w + 1 = z where z = sqrt(–3) . If|1       1                  1    ||1      -w^2– 1        w^2 |  = 3k,|1       w^2             w^7 |then k is equal to :-(1) 1 (2) –z (3) z (4) –1 Note : This is a determinant:  |1       1                  1     ||1      -w^2– 1        w^2 |  = 3k,|1       w^2             w^7 |

```
2 years ago

Deepak Kumar Shringi
4404 Points
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2 years ago
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### Course Features

• 101 Video Lectures
• Revision Notes
• Test paper with Video Solution
• Mind Map
• Study Planner
• NCERT Solutions
• Discussion Forum
• Previous Year Exam Questions