VERO O FALSO?
a. $\int_2^4 f(4 x) d x=\int_1^2 f(2 x) d x$.
b. Se $\int_{-1}^2 f\left(\frac{x}{2}\right) d x=9$, allora $\int_{-2}^1 f(x) d x=\frac{9}{2}$.
c. Se $\int_{-2}^1 f(x) d x=1$ e $\int_1^4 f(x) d x=8$, allora $\int_{-4}^\pi f\left(\frac{x}{2}\right) d x=18$.
d. Se $\int_0^2 f(2 x) d x=4$ e $\int_2^3 f(2 x) d x=10$, allora $\int_0^{16} f(x) d x=14$.
