\infty} (1-\frac{9}{x})^x=\\\\lim_{x->\infty} (1+\frac{1}{\frac{-x}{9}})^{\frac{-x}{9}*(-9)}=e^{-9}" alt="lim_{x->\infty} (1-\frac{9}{x})^x=\\\\lim_{x->\infty} (1+\frac{1}{\frac{-x}{9}})^{\frac{-x}{9}*(-9)}=e^{-9}" align="absmiddle" class="latex-formula">
3} (x^3+2x^2-5x+1)=3^3+2*3^2-5*3+1=31" alt="lim_{x->3} (x^3+2x^2-5x+1)=3^3+2*3^2-5*3+1=31" align="absmiddle" class="latex-formula">