In calculus, if you want to learn limit, you should learn function in mathematics. Function in mathematics shows the relationship of set of input with set of output. In general, when we celeberate any part, we invite our relatives and friend in the function. We think with this, our relation will become strong. In mathematics, we also identify our input's real related output. In above video, you will understand the function with examples.
Input of the function will be the domain and output of function will be co-domain. By solving the co-domain, we have to calculate the value of Domain of Function .
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