$\int x^2\cos\left(9x\right)dx$
$\lim_{x\to\infty}\left(\frac{-6x^5+3x^4+2x^3+1}{3x^5+4x^2+2x-3}\right)$
$\left(-9+6\right)+\left(16-4\right)\:-\left(5-10\right)\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:$
$2x^{3\:}+3x^{2\:}-\:18x\:-\:27$
$2y=6-x$
$\:-10\:+\:2y\:+\:4y\:+\:7$
$\frac{\left(\tan\left(b\right)\sec\left(b\right)\right)\left(\tan\left(b\right)-\sec\left(b\right)\right)}{sec\:\left(b\right)}$
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