Yu Yan
Abstract
The proof on the derivative's formula (xa)=axa-1 (a is actual amount) has defect in new compiled 21 century a Serious of teaching material on higher occupation and sperical field(used by science and engineering) higher math,this paper will give two kinds of correctly proving process.
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The proof on the derivative's formula (xa)=axa-1 (a is actual amount) has defect in new compiled 21 century a Serious of teaching material on higher occupation and sperical field(used by science and engineering) higher math,this paper will give two kinds of correctly proving process.
Key concepts: Derivative (finance), Mathematics, Calculus (dental), Field (mathematics), Discrete mathematics, Pure mathematics, Medicine, Dentistry