$a^3+b^3+c^3=24$

$5xyz\left(yz^2\right)+5\left(x^2+xy\right)$

$0.3381051033-\left(\frac{\left(-0.999980478\right)\left(1.3-0.3381051033\right)}{12.78584918-\left(-0.999980478\right)}\right)$

$\lim_{x\to\infty}\left(\frac{2^x+1}{2^x-x}\right)^x$

$\lim_{x\to0}\left(\sqrt{x-1}\right)$

$csc\left(u\right)-cos\left(u\right)cot\left(u\right)$

$9\cdot7-3\cdot2-3\cdot8$