Câu 17:
Cho ∫25f(x)dx=10.\int\limits_{2}^{5}{f\left( x \right)dx}=10.2∫5f(x)dx=10. Khi đó ∫52[2−4f(x)]dx\int\limits_{5}^{2}{\left[ 2-4f\left( x \right) \right]dx}5∫2[2−4f(x)]dx bằng
