Cho \(a< b< c\), \(\int\limits^b_af\left(x\right)\text{d}x=5\), \(\int\limits^b_cf\left(x\right)\text{d}x=2\) . Tích phân \(\int\limits^c_af\left(x\right)\text{d}x\) bằng
\(-2\).\(3\).\(8\).\(0\).Hướng dẫn giải:\(\int\limits^c_af\left(x\right)\text{d}x=\int\limits^b_af\left(x\right)\text{d}x+\int\limits^c_bf\left(x\right)\text{d}x\)
\(=\int\limits^b_af\left(x\right)\text{d}x-\int\limits^b_cf\left(x\right)\text{d}x=5-2=3\).