Question

,

Solution

Correct option is

,

Put = – 1, to obtain

                   

                   

SIMILAR QUESTIONS

Q1

In a geometrical progression first tern and common ratio are both  Then the absolute value of the nth term of the progression is

Q3

     

     

Q4

 

 

Q5

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

Q6

 21

Q7

 

Q8

 

Q9

The sum of the series