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Example:Solving Inequality

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Linear inequality


In mathematics a linear inequality is an inequality which involves a linear function.

Linear inequalities in real numbers



When two expressions are connected by 'greater than' or 'less than' sign, we get an inequation.

When operating in terms of real numbers, linear inequalities are the ones written in the forms


where f(x) is a linear functional in real numbers and b is a constant real number.

The above are commonly written out as


Sometimes they may be written out in the forms


Here  are called the unknowns, 

 are called the coefficients, and b is the constant term.

A linear inequality looks exactly like a linear equation, with the inequality sign replacing the equality sign. (Our solved example in mathguru.com uses this concept)




The above explanation is copied from Wikipedia, the free encyclopedia and is remixed as allowed under the Creative Commons Attribution- ShareAlike 3.0 Unported License.