Practicing Success
Practicing Success
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If $mx^m-nx^n = 0$ then what is the value of $\frac{1}{x^m+x^n}+\frac{1}{x^m-x^n}$ in terms of $x^n$ ? |
$\frac{2mn}{x^n(n^2+m^2)}$ $\frac{2m}{x^n(m^2-n^2)}$ $\frac{2mn}{x^n(n^2-m^2)}$ $\frac{2mn}{x^n(m^2-n^2)}$ |
$\frac{2mn}{x^n(n^2-m^2)}$ |
