Câu 33:
Nếu ∫0π2[2020f(x)+sin2x]dx=2021\int\limits_{0}^{\frac{\pi }{2}}{\left[ 2020f\left( x \right)+\sin 2x \right]}\text{d}x=20210∫2π[2020f(x)+sin2x]dx=2021 thì ∫0π2f(x)dx\int\limits_{0}^{\frac{\pi }{2}}{f\left( x \right)}\text{d}x0∫2πf(x)dx bằng
