$5sin\left(x\right)-\frac{3}{2}=-11sin\left(x\right)+\frac{13}{2}$

$4x+2x+\left[6\left(x-1\right)-2\left(x+3\right)\right]$

$\lim_{x\to\infty}\left(\frac{x}{\ln\left(x^{15}\right)}\right)$

$+1-\left[+3-\left(-8\right).\left(+8\right)\right]+\left[+6+\left(+8\right):\left(+4\right)\right]$

$\int xcos^3\left(x^2\right)dx$

$\lim_{x\to0}\left(\frac{\left(5x-sin5x\right)}{\left(7-7cosx\right)}\right)$

$\frac { 12 } { 1 }$