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XI_Maths_Complex numbers_9 online Test

If  are the three cube roots of unity, then  _____.
64
729
2
0
If  are nth, roots of unity, then for  _____.
If  are the cube roots of unity, then = _____.
0
1
The value of  is _____.
– 1
i
0
1
If  then x = _____.
None of the above
If 1,  are the cube roots of unity then  _____.
1
-1
i
0
The value of  _____.
-1
-2
-3
-4
/
i if n is even, – i if n is odd
1 if n is even, – 1 if n is odd
1 if n is odd, – 1 if n is even
i if n is even, – 1 if n is odd
The value of  is _____.
0
27
26
None of the above
The multiplication inverse of a number is the number itself, then its initial value is _____.
i
– 1
2
– i
Description:

This test is for AIEEE and IIT JEE preparation.

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