$\int\left(sen5x\right)^7\left(cos5x\right)^3dx$
$cos2x=-0.913545457$
$4a^2+2a-6a^2+15a$
$\int\left(\frac{12}{x^2+3x-10}\right)dx$
$m^3+2m^3+4m^3$
$180\cdot25$
$\int\left(\tan5x-\sec5x\right)^2dx$
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