$\sin\left(a+60\right)$

$\int\frac{3x^3+1}{\left(x-1\right)\left(x^2+1\right)}dx$

$\lim_{u\to\frac{\pi}{4}}\left(\frac{8\tan\left(u\right)-8\cot\left(u\right)}{u-\frac{\pi}{4}}\right)$

$6\left(x+1\right)=25.158$

$3x=30$

$\left(4x^3+5y\right)^2$

$\ln\left(\sqrt{2x^{2}-4x}\right)$