Question

$x - \cos x + c$

• A. $\int_{}^{}{\frac{1}{x^{2}}(2x + 1)^{3}}dx =$
• B. $4x^{2} + 12x + 6\log x - \frac{1}{x} + c$
• C. $4x^{2} + 12x - 6\log x - \frac{2}{x} + c$
• D. None of these

Answer 1

Answer: (B)

$4x^{2} + 12x + 6\log x - \frac{1}{x} + c$

Answer 2

$(3)^{x^{3}} + c$

$\frac{(3)^{x^{3}}}{\log 3} + c$