1. calculus
... several independent variables. The statement "u is an infinitesimal" meaning "u is a variable approaching 0 as a limit," found in a few present-day and in many older texts on calculus, is confusing and should be avoided. Further, it is essential to distinguish between the limit of f (x) as x approach x0 and the value of f (x) when x is x0, that is, the correspondent of x0. For example, if f (x) = sin ... various functions directly by means of various known formulas: a) (f + g)'(x) = f' (x) + g' (x); b) (f - g)'(x) = f' (x) - g' (x); c) (fg)'(x) = f (x) g' (x) + g (x) f' (x); d) if p (x)...
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- Grade Level: High School