- $ \\\int f (x)dx = \\\frac{4}{7}{x^{ - \\\frac{7}{4}}} + C$.
- $ \\\int f (x)dx = \\\frac{7}{4}{x^{ - \\\frac{7}{4}}} + C$.
- $ \\\int f (x)dx = \\\frac{1}{4}{x^{\\\frac{1}{4}}} + C$.
- $ \\\int f (x)dx = 4{x^{\\\frac{1}{4}}} + C$.