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Let ω be a complex number such that 2 ω + 1 = z where z = 3 − . If 7 2 2 2 1 1 1 1 1 1 ω ω ω − ω − = 3k, then k is equal to

1. z
2. –1
3. 1
4. –z Students may find similar question in CP exercise sheet : [ JEE Advance, Chapter : Complex Number, Page 29, Ex. 3 ]

Correct answer: –z Students may find similar question in CP exercise sheet : [ JEE Advance, Chapter : Complex Number, Page 29, Ex. 3 ]

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