$\sin\left(\sqrt{x}\right).\cos\left(\frac{1}{x}\right)$

$x^2-6x^1+16$

$\frac{d}{dx}\:5\cos^34x^2$

$\frac{1}{2}\log\left(x\right)-3\log\left(n\right)-2\log\left(m\right)+\frac{3}{5}\log\left(y\right)+\log\left(z\right)$

$z^2+15z$

$-8\left[3-5\left(-2\right)+\left(-3\right)\left\{2\left(-8\right)-3\left(-7\right)\right\}-1\left(-1\right)\right]$

$\left(0.5x+0.4y\right)^2$