Question

1. 100 surnames were randomly picked up from a social directory anda frequency distribution of the no.of lettersin english alphabets in the surnames was found as follows:

Form a n sided polygon by using the roots of the equation xⁿ =1as vertices in complex plain, for n = 4,5,6,7,…..

please solve tgat ques as soon as possible. That ques is from ch profit and gains from business and profession.