$\left(1-cos^x\right)secx$
$\int\left(e^x\sqrt{31+e^x}\right)dx$
$\frac{3}{4}x^2-\frac{5}{6}x$
$9x^2-60x+25$
$\left(csc\theta\:-sen\theta\:\right)2cos^{\left(2\right)}\theta\:\cdot cot\theta\:$
$\frac{1}{cos^4x}-\frac{1}{cos^2x}$
$48\cdot17$
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