Click to Chat

1800-2000-838

+91-120-4616500

CART 0

• 0

MY CART (5)

Use Coupon: CART20 and get 20% off on all online Study Material

ITEM
DETAILS
MRP
DISCOUNT
FINAL PRICE
Total Price: Rs.

There are no items in this cart.
Continue Shopping
`        if P is a multiple of n then the sum of pth  power of nth root of unity is`
7 years ago

147 Points
```										DEar manan
nth root of unity is  e0 ,e2π/n ,e4π/n ,e6π/n ,.......e2π(n-1)/n

now we have to find S = {e0}p +{e2π/n}p +{e4π/n}p +{e6π/n}p ,.......{e2π(n-1)/n}p

since p is multiple of n
so each term become  e2πr  form  which is equal =1

so S =1+1+1...1
=n
Please feel free to post as many doubts on our discussion forum as you can.If you find any question Difficult to understand - post it here and we will get youthe answer and detailed  solution very  quickly. We are all IITians and here to help you in your IIT JEE preparation.All the best. Regards,Askiitians ExpertsBadiuddin
```
7 years ago
Think You Can Provide A Better Answer ?

Other Related Questions on AIEEE Entrance Exam

View all Questions »
• Complete JEE Main/Advanced Course and Test Series
• OFFERED PRICE: Rs. 15,900
• View Details
• Complete JEE Main/Advanced Course and Test Series
• OFFERED PRICE: Rs. 15,900
• View Details