[phpBB Debug] PHP Notice: in file /viewtopic.php on line 988: date(): It is not safe to rely on the system's timezone settings. You are *required* to use the date.timezone setting or the date_default_timezone_set() function. In case you used any of those methods and you are still getting this warning, you most likely misspelled the timezone identifier. We selected the timezone 'UTC' for now, but please set date.timezone to select your timezone.
[phpBB Debug] PHP Notice: in file /viewtopic.php on line 988: getdate(): It is not safe to rely on the system's timezone settings. You are *required* to use the date.timezone setting or the date_default_timezone_set() function. In case you used any of those methods and you are still getting this warning, you most likely misspelled the timezone identifier. We selected the timezone 'UTC' for now, but please set date.timezone to select your timezone.
[phpBB Debug] PHP Notice: in file /includes/functions.php on line 4509: Cannot modify header information - headers already sent by (output started at /includes/functions.php:3706)
[phpBB Debug] PHP Notice: in file /includes/functions.php on line 4511: Cannot modify header information - headers already sent by (output started at /includes/functions.php:3706)
[phpBB Debug] PHP Notice: in file /includes/functions.php on line 4512: Cannot modify header information - headers already sent by (output started at /includes/functions.php:3706)
[phpBB Debug] PHP Notice: in file /includes/functions.php on line 4513: Cannot modify header information - headers already sent by (output started at /includes/functions.php:3706)
simplifying radicals

simplifying radicals

Tutorial articles are posted here.

Moderator: ChangBroot

simplifying radicals

Postby admin » Thu 24 March, 2011 21:40

Some radicals can be written in a form that they can be either added or subtracted. This new form or simplifying is a method to achieve that.

when we have `(15sqrt6)/(3sqrt3)` it can be written as `15/3*sqrt6/sqrt3`
Now simplify `15/3=5` so we can write our radical as `5sqrt6/sqrt3` or simpler `5sqrt((6/3))`
Then `6/3=2`, therefore you can write it as `5sqrt2`.

1-to simplify `sqrt20` we can write it as:
`sqrt20=sqrt4*sqrt5=2sqrt5`

2-`root3(54)=root3(27*2)`
`root3(27)*root3(2)=3*root3(2)`

3-`sqrt20/sqrt5=(sqrt4*sqrt5)/sqrt5`
`sqrt4*sqrt5/sqrt5` because `sqrt5/sqrt5=1` so we have `sqrt4*1=sqrt4=2`
admin
Site Admin
 
Posts: 10
Joined: Fri 11 March, 2011 11:12
Location: Canada

Return to High School Algebra

Who is online

Users browsing this forum: No registered users and 1 guest

cron