What is algebra?explain
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Algebra is a branch of mathematics dealing with symbols and the rules for manipulating those symbols. In elementary algebra, those symbols (today written as Latin and Greek letters) represent quantities without fixed values, known as variables.
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In mathematics, an algebraic expression is an expression built up from integer constants, variables, and the algebraic operations (addition, subtraction, multiplication, division and exponentiation by an exponent that is a rational number).[1] For example, 3x2 − 2xy + c is an algebraic expression. Since taking the square root is the same as raising to the power
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{\displaystyle {\sqrt {\frac {1-x^{2}}{1+x^{2}}}}}{\sqrt {\frac {1-x^{2}}{1+x^{2}}}}
is also an algebraic expression.
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