formulae use We learn so many formulae in maths? But I don't find any use of them in our daily life. Can there be any uses. Like what can be the use of (a + b)^2.

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Actually, we do use formulas in our everyday life.  For example, the formula for miles per gallon or miles per hour are part of your life every day.  Also, anyone who has ever done any home improvement knows you need a lot of formulas, such as length x width =area for finding carpet!

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