$\frac{d}{dx}\left(ln\left(2x-1\right)\right)$

$-5+4+\left[3-\left(4-8\right)+\left(-5-10\right)\right]$

$7\left(3-x\right)-x\ge5$

$2x+1\ge5$

$f\left(x\right)=\cos\left(x\right)\cdot\sec^2\left(x\right)$

$\lim_{x\to-4}\left(x^2-3x\right)$

$2\int\left(\sqrt{\sin\left(x\right)+1}\right)dx$