$$\lim_{x\to0}\left(\frac{tan6x}{sinx}\right)$$

$$\sqrt{25a^4b^6c^{10}}$$

$$2968-3616$$

$$\frac{1-cos\left(2a\right)}{sin\left(2a\right)}=\tan\left(a\right)$$

$$\int_1^{\infty}\left(\frac{1}{2x+7}\right)dx$$

$$\sqrt{\sqrt[50000000000]{3.1416}}$$

$$\left(x^2-3y^2\right)\cdot dx+2\cdot x\cdot y\cdot dy$$