If 
is a complex number satisfying 
then 
has the value
a)
when 
is a multiple of 3
b)
when 
is not a multiple of 3
c)
when 
is a multiple of 3
d)
0 when 
is not a multiple of 3
If is a complex number satisfying then has the value
a)
when is a multiple of 3
b)
when is not a multiple of 3
c)
when is a multiple of 3
d)
0 when is not a multiple of 3
Question ID - 103178 | SaraNextGen Top Answer
If is a complex number satisfying then has the value
a)
when is a multiple of 3
b)
when is not a multiple of 3
c)
when is a multiple of 3
d)
0 when is not a multiple of 3
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d) |
0 when |
1 Answer
127 votes
Answer Key / Explanation : (a) -
(a)
We have,
For 
we have
Since 
and 
are reciprocal of each other and 
does not change when 
is replaced by 
Therefore, the value of 
remains same for 
127 votes
Answer Link
127