$\frac{1}{\sec\left(a\right)}=\sin^2\left(a\right)\cdot\cos^2\left(a\right)+\cos^4\left(a\right)$
$-5^2\:+-5^2\:+-5^2\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:$
$\lim_{x\to\infty}\left(\frac{ln\left(x^3\right)}{x^3+2x+5}\right)$
$-4\left(x\:+5\right)-5\:\left(x-1\right)$
$\lim_{x\to0}\left(\frac{\left(cos\left(x\right)+e^{2bx}-a\right)}{x}\right)$
$\tan^2\left(x^3-8\right)$
$3^2+4\left(2+5+3^3\right)$
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