the seventh root of 1

For students of class 11-12 (age 16+)
Post Reply
raihan khan
Posts:35
Joined:Wed Mar 16, 2011 12:30 pm
Location:Dhaka
the seventh root of 1

Unread post by raihan khan » Thu Mar 17, 2011 11:19 am

find the seventh root of 1
that is (1)^(1/7)=?
Top
User avatar
Tahmid Hasan
Posts:665
Joined:Thu Dec 09, 2010 5:34 pm
Location:Khulna,Bangladesh.

Re: the seventh root of 1

Unread post by Tahmid Hasan » Thu Mar 17, 2011 12:01 pm

de movre' theorem can be used here.
বড় ভালবাসি তোমায়,মা
Top
User avatar
Masum
Posts:592
Joined:Tue Dec 07, 2010 1:12 pm
Location:Dhaka,Bangladesh

Re: the seventh root of 1

Unread post by Masum » Sat Mar 26, 2011 3:39 am

The $n-th$ complex root of unity is $e^{\frac {2i\pi } {n}}$
One one thing is neutral in the universe, that is $0$.
Top
Post Reply

Return to “Higher Secondary Level”