$8x+2>34$
$\lim_{x\to0}\left(\frac{sinx-x}{1-cosx}\right)$
$4\left(3a-2b+5\right)$
$\left(a^4-3\sqrt{2}\right)^2$
$31-\left(-15\right)$
$15:\left(-5\right)$
$\frac{\cos\left(thta\right)\left(1-\cos^2\left(\theta\right)\right)}{\cot\left(\theta\right)\left(\sec^2\left(\theta\right)-1\right)}$
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