Question

The point represented by the complex number 2 – I is rotated about origin through an angle in the clockwise direction. The complex number corresponding to new position of the point is

Solution

Correct option is

– 1 – 2i

                         

                         

                         

Alternatively, the number is divided by i ; do the new number

                         

SIMILAR QUESTIONS

Q1

 

 

Q2

If z1 and z2 be two complex numbers such that |z1 + z2| = |z1 – z2| then a value of amp z1 – z2 is equal to

Q3

 21

Q4

 

Q5

 

Q6

The sum of the series

 

Q7
Q9
Q10