$$\left(x+1\right)+\left(2\sqrt{\frac{x^2}{2}+x+\frac{1}{2}}\right)+3x$$

$$\int te^{9t}dt$$

$$\lim_{x\to0}\left(\frac{ln\left(x\right)}{cot\:g\:x}\right)$$

$$\sqrt{5x^3}$$

$$\sin\left(b\right)\sec\left(b\right)=\tan\left(v\right)$$

$$\left(2by^3-3by^3\right)$$

$$\frac{2^2+x-2}{x}$$