$$( x ^ { 4 } - 4 y - c ^ { 2 } ) ^ { 2 }$$

$$\left(\frac{1}{cos^2x}\right)\left(\frac{cosx}{sinx}\right)$$

$$\int5x^6dx$$

$$5z-4z$$

$$\int arctan\cdot x^{-2}$$

$$\frac{dy}{dx}=\frac{x^3}{y\left(6+x^4\right)}$$

$$\left(\frac{1}{2}-\sqrt{\frac{3}{2}}i\right)^5$$