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

* Đáp án

C

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