$y=\frac{40+80e^{0.06x}}{20+e^{0.06x}}$
$\int_0^{-\pi}\left(\frac{1-sec^2x}{cscx\cdot sen^2x}\right)dx$
$\frac{dx}{dy}-y^2+1=0$
$-4x^2+4x^2-576$
$\int9\left(6x-5\right)^{\frac{4}{7}}dx$
$\left(a^x+b^{3n}\right)\:\left(a^x-b^{3n}\right)$
$2\:\frac{dy}{dx}\:+y^2=4$
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