$\int_{0.5}^1\arccos\left(\sqrt{x}\right)\sqrt{x}dx$
$\lim_{x\to\frac{1}{2}}\left(\frac{x\cos\left(x\right)}{e^x-\sqrt{e}}\right)$
$2\cdot\left[7-\left(5+9\right)\:\:\cdot\:\left(-8-4\right)\right]+2$
$\frac{10}{13}+\frac{3}{13}$
$-7\left(4-9w\right)+8w$
$\int_0^2\left(\frac{\sqrt{1+x^2}}{t^4}\right)dx$
$\int\left(4x^3\cdot\cos\left(2x^4\right)\right)dx$
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