Today in class we continued to learn about triginomic identities and how to solve them. To prove an identity to be true, basically you must try to make the left hand side of the equation equal to the right side. Eight basic techniques to try and solve or simplify an equation to prove its identity are shown below (a-h).
If the left hand side (LHS) equals the right hand side (RHS) then the identity is proved to be true. The correct terminology is shown in the slide below
In order to master the art of proving identities you must practice practice practice! To some, (like myself) it can be very difficult and frustrating which is why it is important to keep up with your exercises and practice.
It is important to know that to verify and to prove are similar but not the same. When you are verifying something you finding an identity for a specific case but it does not prove the identity for the whole equation.
Similarily to graphing, verifying cannot be used to prove an identity but you can use it to disprove.
Together we went through a few different problems for proving identities which are shown in the above slides.
Even though today was our deadline for accelerated math, Mr. Max was ever so kind to give us until friday to get done our first nine objectives. So don't forget to get those done by 3:40 friday and for tomorrow have questions 1-9 of exercise 15 to complete.
Thats all for now, so remember, keep your eye on the ball!
By the way happy birthday Cindy Lou!!! Hope you have a good one!
Picture courtesy of "http://www.freerangechick.com/images/bdayCard/BBigBirthdayCake.jpg"
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