FICHA

$\lim_{x \to \infty } \frac{(lnx)^{7}}{x}=?$

$\lim_{x \to \4 } \left (\frac{x}{4}\right )^{\frac{1}{x-4}}=?$

$\lim_{x \to \infty } \frac{4x}{(lnx)^{3}+3x}=?$

$\lim_{x \to \0 } \left(\frac{4}{x}-\frac{2}{sen x} \right)=?$

$\lim_{x \to \0 } \frac{7x^3+3x^2}{sen^2 (7x)}=?$

$\lim_{x \to \frac{\pi}{4} } (tgx-1)\cdot sec(6x)=?$

$\lim_{x \to \0 } (4\cdot cotgx)^{senx}=?$

$\lim_{x \to \0 } \frac{e^{3 x}-e^{-6 x}}{sen(7 x)}=?$

$\lim_{x \to \0 } arcsen(5x)\cdot cotg x=?$

$\lim_{x \to \0 } x\cdot (lnx)^{2}=?$

$\lim_{x \to \1 } \frac{lnx}{5x-5}=?$

$\lim_{x \to \0 } x^{tg(7x)} =?$