|
Square Roots:
Here are a few square roots:
The first two popped
cleanly (because they had perfect squares inside.)
But, the last guy didn't. He's an irrational
number. His decimal part goes on forever and ever
and never repeats.
Just like
!
The reason I used "
" instead of a regular " =
" is because I can't really write the exact number down.
means " approximately = "
When
roots like
 don't pop cleanly, in math, we just leave
them as radicals. It's more accurate this way!
So...
 ? Just leave it as
! Done!
We cannot
do square roots like this yet:
This
negative is a problem.
There IS an answer for this guy, but you'll learn about
it later.
Continued on the
next
page |
