$7x-4<0$
$\left(-3.2\cdot1.7\right)$
$\lim_{x\to1}\frac{x-1}{-2\sqrt{x^2+3}}$
$\left(m+1\right).-1m$
$\int\left(e^x\cdot\cos\left(e^x\right)\right)$
$\left(-51\right)-\left(-88\right)$
$\int4^{-x}dx$
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