Question

Calculus

Answer 1

@Michele_Laino @magepker728

Answer 2

hint:
by definition of integral, we can write:
\[\huge F'\left( x \right) = f\left( x \right)\]

Answer 3

furthermore: the first derivative of \(f(x)\) is \(3\)

Answer 4

hint:
when we perform an integration, we have to add an arbitrary real constant to the right side