The limit of a function at a point 'a' in its domain (if it exists) is the value that the function approaches from left and right side of 'a' then function approaches a number L is called limit of function
the limit of a function is a fundamental concept in calculus and analysis concerning the behavior of that function near a particular input. Formal definitions, first devised in the early 19th century, are given below. Informally, a function f assigns an output f(x) to every input x.
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