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Elementary Algebra

by Cassandra Yambao

Give examples of problems which involve real numbers.

Real numbers include:

(1) Rational Numbers (can be represented by a ratio), and

(2) Irrational Numbers (√2, π, e, etc)

Comments for Elementary Algebra

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Jul 30, 2011
Elementary Algebra - Real Numbers
by: Staff

The question:

by Cassandra Yambao

can i have some problems in real numbers???

The answer:

Real Numbers are all numbers whose decimal form can be plotted as a point located on a number line.

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Real numbers include: 1) Rational Numbers, and 2) Irrational Numbers

Rational Numbers: can be represented by a ratio (all fractions, terminating and repeating decimals, natural numbers, whole numbers, and integers).

Irrational Numbers: decimals which are non-terminating and do not have a repeating pattern (√2, π, e, etc).

The following examples are arithmetic problems using "real" numbers:

Example Problems using “Rational” Numbers:

1 + 1 = 2

15÷5 = 3

3/5 - 1/10 = ½

.0012 + .3 = 0.3012

Example Problem using “Irrational” Numbers:

√2 + 3√2

= 4√2

= 4*1.414213562373095048801688724209 69807856967187537694807317667973799....

= 5.65685424949238019520675489683879231427868750150779229270671895196….

Thanks for writing.


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