Question

Marque a função que é uma primitiva de f(x) = 2x7 + 1. a) x x 8 2 8 12 ++ b) 71 7 xx ++ c) 2 5 7 9 2x x ++ d) xx 82 43 8 ++ e) x x 8 4 25

Answer 1

$\boxed{\begin{array}{l}\displaystyle\sf\int(2x^7+1)dx=2\cdot\dfrac{x^{7+1}}{7+1}+x+c\\\\\displaystyle\sf\int(2x^7+1)dx=\backslash\!\!\!2\cdot\dfrac{x^8}{\backslash\!\!\!8_4}+x+c\\\\\displaystyle\sf\int(2x^7+1)dx=\dfrac{x^8}{4}+x+c\end{array}}$