Algebra
Inequalities
Inequalities Inequalities appear to us in many forms. Imagine that we want to express the following sentence in an equation: The total number of cars parked here is at least 50. If this total is […]
Algebra
Proportions and scientific notations
Proportions and scientific notations Before discussing proportions, let’s revisit the . Percent: Usually we see fractions where the numerator is . This is mainly the case of decimal fractions and some other common fractions. We […]
Algebra
FACTORING BASICS
FACTORING: Factoring is another step we must refresh to be able to simplify and solve equations. Simply put, if we cannot factor, chances are that we cannot simplify. For a giving number, we have to […]
Algebra
Solved Problems
Solved Problems A stranger asked about his age replied : If I have to reach 100 years, the half of the of the of my age is 12 years more than the of the of […]
Calculus
Integration table
Integration table In the previous chapters, we have used an extensive amount of formulas for the indefinite integration. While we have not started the definite integrals calculation, it is handy to have some of the […]
Algebra
Absolute value
Absolute value The best way to try to understand the absolute-value is to look at the number line.If we take any number on the number line, its distance from zero is its absolute value. The […]
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