Questão 780356

\(\frac{3}{2}\) ( \(\cos\) 7x + \(\cos\) x) + c

\(\frac{3}{2}\) (- \(\frac{1}{7}\) \(\cos\) 7x + \(\cos\) x) + c

\(\frac{3}{2}\) ( \(\frac{1}{7}\) \(\cos\) 7x - \(\cos\) x) + c

\(\frac{3}{2}\) ( \(\frac{1}{7}\) \(\cos\) 7x + \(\cos\) x) + c

\(\frac{3}{2}\) \(\cos\) 7x + \(\frac{1}{2}\) \(\cos\) x + c