Cho a < b < c, \(\int\limits_a^b {f\left( x...

Câu hỏi: Cho a < b < c, \(\int\limits_a^b {f\left( x \right)dx = 5} ,\,\int\limits_c^b {f\left( x \right)dx = 2} \). Tính \(\int\limits_a^c {f\left( x \right)dx} \)

A. \(\int\limits_a^c {f\left( x \right)dx = 7} \)

B. \(\int\limits_a^c {f\left( x \right)dx =  - 2} \)

C. \(\int\limits_a^c {f\left( x \right)dx = 3} \)

D. \(\int\limits_a^c {f\left( x \right)dx = 10} \)