$\int_0^{\frac{\pi}{2}}\left(\frac{1-sen\left(x\right)}{cos\left(x\right)}\right)dx$
$1-4x-1$
$\left(5x-3\right)\left(x-3\right)$
$\sqrt[3]{2}\sqrt[2]{64x}^6$
$53\cdot5$
$7c=a\left(b-c+1\right)$
$\left(q-9\right)^2$
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