So i started calculus and am currently stuck at the following problem.
Q.Evaluate by algebraic techniques:
$\displaystyle \lim_{x\rightarrow a}\frac{x^{n}-a^{n}}{x^{m}-a^{m}}$
The answer provided by the book is:
$\displaystyle \frac{n}{m}x^{n-m}$
Thanks.