$\left(y-3\right)^2=4$

$\sec\left(x\right)\cdot\tan^2\left(x\right)\cdot\sec\left(x\right)$

$\left(y^2+2y\right)sinx^2dx+\frac{y_{+1}}{x}dy=0$

$\frac{3x}{4}-2\ge10$

$\frac{d}{dx}ln\left(_{6-x}\right)$

$\left(\frac{90\cdot y^a\cdot x^b\cdot z^3}{10\cdot x^1\cdot z^3}\right)^b$

$3n^2+2n-15\:para\:n=5$