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If  is an imaginary cube root of unity,  is a positive integer but not a multiple of 3, then the value of  is

a)

3

b)

c)

0

d)


Question ID - 103186 | Toppr Answer

If  is an imaginary cube root of unity,  is a positive integer but not a multiple of 3, then the value of  is

a)

3

b)

c)

0

d)

1 Answer - 5876 Votes

3537

Answer Key : (c) -

(c)

Since,  is not a multiple of 3, therefore , where  is a positive integer.

For   ,

Similarly, for



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