Question

Solution

Correct option is

9

                        

                        

SIMILAR QUESTIONS

Q1

              

Q2

root of unity, then the value of

                         

Q3

Let z1 and z2 be nth roots of unity which subtend a right angle at the origin. Then n must be of the form

Q4

If z­1 and z2 are two nth roots of unity, then  is a multiple of

Q5
Q7

 

Q8
Q10

For any three numbers z1, z2, z3 if