All about
flooble

fun stuff

Get a free chatterbox

Free JavaScript

Avatars
perplexus
dot
info
Home
>
General
Don't be confused (
Posted on 20161114
)
If x satisfy the equation x^4  x^2 + 1 = 0 , find the value of x^5 + 1/x
No Solution Yet
Submitted by
Danish Ahmed Khan
No Rating
Comments: (
Back to comment list
 You must be logged in to post comments.
)
Solution
 Comment 2 of 4 
Multiply both sides of x^4  x^2 + 1 = 0 by (x^2 + 1) to get x^6 + 1 = 0.
Then rearrange x^6 + 1 = 0 into x^5 = 1/x.
Then x^5 + 1/x = 1/x + 1/x = 0.
Posted by
Brian Smith
on 20161114 11:13:44
Please log in:
Login:
Password:
Remember me:
Sign up!

Forgot password
Search:
Search body:
Forums (0)
Newest Problems
Random Problem
FAQ

About This Site
Site Statistics
New Comments (3)
Unsolved Problems
Top Rated Problems
This month's top
Most Commented On
Chatterbox:
blackjack
flooble's webmaster puzzle
Copyright © 2002  2020 by
Animus Pactum Consulting
. All rights reserved.
Privacy Information