Cho ∫03fxdx=5 và ∫03gxdx=2. Tính: a) \(\int\limits_0^3 {\left[ {f\left( x \right) + g\left( x \right)} \right]} dx\); b) \(\int\limits_0^3 {\left[ {f\left( x \right) - g\left( x \right)} \right]} dx\); c) \(\int\limits_0^3 {3f\left( x \right)} dx\); d) \(\int\limits_0^3 {\left[ {2f\left( x \right) - 3g\left( x \right)} \right]} dx\).

Cho ∫03fxdx=5 và ∫03gxdx=2. Tính:

a) \(\int\limits_0^3 {\left[ {f\left( x \right) + g\left( x \right)} \right]} dx\);

b) \(\int\limits_0^3 {\left[ {f\left( x \right) - g\left( x \right)} \right]} dx\);

c) \(\int\limits_0^3 {3f\left( x \right)} dx\);

d) \(\int\limits_0^3 {\left[ {2f\left( x \right) - 3g\left( x \right)} \right]} dx\).