$-3^4-5-3^2-3+16$
$\lim_{x\to\infty}\left(\frac{\sqrt{x}}{3x-1}\right)$
$-64x^2+176x-121$
$\int x^2\tanh\left(x^3\right)dx$
$\int2\cos4x\:dx$
$\frac{\left(1+tan^2\left(-x\right)\right)}{\left(1-cos^2\left(-x\right)\right)}$
$-9=-3n$
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