Link to evaluate expression with variables (valor numérico de una expresión)
You can practise in the IXL link as well.
domingo, 5 de febrero de 2012
viernes, 3 de febrero de 2012
brackets in algebra
Like terms can be
added together –this is called collecting
like terms and you can simplify expressions by collecting like terms.
Example 1 Collect like
terms to simplify each expression.
a)
5a+4c+3a-2c=8a+2c (We combine the terms in a, and the
terms in c).
b)
6ab+5y-2ab-2y+7z=4ab+3y+7z (We combine the terms in ab,
and the terms in y but we can’t combine terms in z).
Brackets
in algebra
You can multiply out a bracket in algebra. You must
multiply each term inside the bracket
by the term outside the bracket.
Example 2 Multiply out:
teorema fundamental del cálculo
Aquí tienes un poco de historia del cálculo integral y como NEWTON lo relacionó con el cálculo diferencial:
Newton y el teorema fundamental del cálculo
Newton y el teorema fundamental del cálculo
Etiquetas:
bachillerato,
integrales
jueves, 2 de febrero de 2012
martes, 31 de enero de 2012
Variable expressions
Variable expression is
an expression containing numbers and variables (e.g., 7v), and operations that
involve numbers and variables (e.g., 2v + w or 3a - 4).
3x+4y-6z is an variable
expression. Each part is called a term.
There are three terms: 3x, 4y and 6z.
Exercises: IXL - variable expressions u1,u2,u3, u4,u5 and u6.
Like terms use exactly the
same letters:3a and 6a are like terms, 5ab and 7ab are like terms
but 4a and 3ab are not like terms.
el infinito

Aquí tenéis un interesante enlace que explica el concepto de infinito numerable.
George Cantor fue el matemático que más aportó al estudio del infinito.
Etiquetas:
bachillerato,
infinito
domingo, 29 de enero de 2012
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