$$\left(\frac{4\cdot243\cdot16}{144}\right)$$

$$\lim_{x\to\infty}\left(x\left(\tan\left(\frac{5}{x}\right)\right)\right)$$

$$\int\frac{\left(10+u\right)}{u}du$$

$$\int_{-6}^6\left(\frac{5}{6+2x^2}\right)dx$$

$$\sin\left(a\right)\left(\csc\left(a\right)-\sec\left(a\right)\right)=1-\tan\left(a\right)$$

$$4\sec\:\left(x\right)-4\tan\:\left(x\right)$$

$$3x^2-3x+4\le0$$