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about exponentials and logarithmic function

2008-09-23T16:02:00.003+08:00

i was study harder to learnt this subject.i was in lucky because my friend was helping me to understand this subject.Hopefully i will not forget the step how to solve the question in the second test after raya break.however i wass making mistakes in the quiz that had i throught.The mistaken was give me a lesson to not doing a same mistake in future.xh

exponential and logarithmic functions

2008-09-23T15:21:00.006+08:00

exponential and radical:
>a repeaters multiplication can be represented by notation.
example of notation :
a^n=a is a real number,n is the positve integers
the notation represent to a repeaters ultiplication of a.
a^-n=that means the notation becomes to 1/a^n.

the theorem of exponentials:
(a^m).(a^n)=a^m+n >product rules
(a^m)^n=a^(m.n) >power of power rules
a^m/a^n=a^m-n >quetient rule for exponents
(ab)^m =(a^m)(b^m) >power of product rule
(a/b)^m=a^m/b^m >power of quotient rule

logarithmic function involves :
>involves of changed of base,
>logarithm notation,and
>logarithmic function and graph.
>logarithmic and exponential equations

hurmm....

2008-09-09T16:03:00.002+08:00

i failed in my first precalculus exam..i just got 12.5/30..i will make sure in future test i will not fail again.........!!!!!!!!!

2008-09-09T15:36:00.001+08:00

2008-08-05T15:55:00.000+08:00

2008-08-05T15:27:00.001+08:00

2008-08-05T15:26:00.001+08:00

2008-08-05T15:25:00.001+08:00

2008-08-05T15:23:00.000+08:00

about precalculuc.....

2008-08-05T15:14:00.001+08:00

Knowledge and Skills Required
Questions on the examination require you to demonstrate the following abilities:
Recalling factual knowledge and/or performing routine mathematical manipulation
Solving problems that demonstrate comprehension of mathematical ideas and/or concepts
Solving nonroutine problems or problems that require insight, ingenuity, or higher mental processes
The subject matter of the Precalculus examination is drawn from the following topics. The percentages next to the topics indicate the approximate percentage of exam questions on that topic.
Approximate Percent of Examination
20%
Algebraic Expressions, Equations, and Inequalities
Ability to perform operations on algebraic expressions
Ability to solve equations and inequalities, including linear, quadratic, absolute value, polynomial, rational, radical, exponential, logarithmic, and trigonometric
Ability to solve systems of equations, including linear and nonlinear
15%
Functions: Concept, Properties, and Operations
Ability to demonstrate an understanding of the concept of a function, the general properties of functions (e.g., domain, range), function notation, and to perform symbolic operations with functions (e.g., evaluation, inverse functions)
30%
Representations of Functions: Symbolic, Graphical, and Tabular
Ability to recognize and perform operations and transformations on functions presented symbolically, graphically, or in tabular form
Ability to demonstrate an understanding of basic properties of functions and to recognize elementary functions (linear, quadratic, absolute value, square root, polynomial, rational, exponential, logarithmic, trigonometric, inverse trigonometric, and piecewise-defined functions) that are presented symbolically, graphically, or in tabular form
10%
Analytic Geometry
Ability to demonstrate an understanding of the analytic geometry of lines, circles, parabolas, ellipses, and hyperbolas
15%
Trigonometry and its Applications
Ability to demonstrate an understanding of the basic trigonometric functions and their inverses and to apply the basic trigonometric ratios and identities (in right triangles and on the unit circle)
Ability to apply trigonometry in various problem-solving contexts
10%
Functions as Models
Ability to interpret and construct functions as models and to translate ideas among symbolic, graphical, tabular, and verbal representations of functions
Knowledge and Skills Required
Most textbooks used in college-level precalculus courses cover the topics in the above outline, but the approaches to certain topics and the emphasis give to them may differ. To prepare for the Precalculus exam, it is advisable to study one or more college textbooks, which can be found in most college bookstores. When selecting a textbook, check the table of contents against the "Knowledge and Skills Required" for this test.
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2008-07-29T16:19:00.000+08:00

2008-07-27T16:03:00.001+08:00

my first post about precalculus..

2008-07-27T14:56:00.001+08:00