Friday, February 20, 2009

What Does Bmi Of 18.2 Mean?



Hello again.
This entry is dedicated to my students of 4 º ESO Here I put a link to a page where the trigonometric ratios are explained and several applications of trigonometry. I think they will be very useful. I hope Thanks to clarify it a bit more with all these new concepts. Come on, I encourage you to practiquéis. Trigonometry

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Trigonometry Equations Systems (II)

Hello visitors.
I have already posted several videos in which we see how to solve systems of linear equations by the three analytical methods that are known. Well, now I put a link for those who want to practice in an interactive way.
on this page are several years, which, if you click on the appropriate system, you can see how it is resolved by each of the methods. I advise you resolváis first and then you see the solution.

Thursday, February 19, 2009

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Another problem to think

!!!!!! I encourage you to
resolváis this other problem that you pose below:
"A king feels that his death is near, and calls his heirs to say," Legare my fortune to meet one of you a number of coins of 1 euro equal to half the number of days I have left to live. "
If you were one of the heirs, what would you do to try to get the inheritance following his premise?."
It's easy, just think a little. Encouragement and try it. Soon you'll
response.

Monday, February 9, 2009

My Sister In The Webcam

Systems of Equations: Substitution Method

This video is the first of three videos that appear the title of "Systems of Equations." I wanted to hang these three videos for you to understand better how analytically reuelven systems of linear equations.
In the videos, a professor at the Polytechnic University of Cartagena, "count" how reuelve the same system of equations by three different methods (Replacement, Reduction and Equalization). As seen with the three methods achieve the same solution. Thus, any of them will be suitable to get solve a system of linear equations. After seeing it, I hope practiquéis, for that is really going to learn to solve systems of equations.

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Systems of Equations: Reduction Method

This video explains how to solve a system of linear equations by the method of reduction. I hope you find it useful.

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Systems of Equations: Method of matching

Hello visitors.
I posted this video for those who need to "understand" best matching method for solving systems of linear equations. Above all I dedicate it to my students, because for them these methods are very "difficult" to understand. The video may not be very attractive and colorful, but listen to the explanations the time we see him writing step by step helps.