Nếu $\displaystyle\displaystyle\int\limits_1^3f(x)\mathrm{\,d}x=2$ thì $\displaystyle\displaystyle\int\limits_1^3\big[f(x)+4\big]\mathrm{\,d}x$ bằng
$8$ | |
$10$ | |
$24$ | |
$-2$ |
Chọn phương án B.
$\displaystyle\int\limits_1^3\big[f(x)+4\big]\mathrm{\,d}x=\int\limits_1^3f(x)\mathrm{\,d}x+\int\limits_1^34\mathrm{\,d}x=2+8=10$.