Đề bài

Tính

a) $\int\limits_{ - 1}^1 {{{(x + 2)}^3}} dx$

b) $\int\limits_1^2 {\frac{2}{{{x^2}}}} dx$

c) $\int\limits_1^4 {{x^2}\sqrt x } dx$

d) $\int\limits_{ - 1}^0 {{2^{3x + 2}}} dx$

e) $\int\limits_0^2 {{2^x}{{.3}^{x + 1}}} dx$

g) $\int\limits_0^1 {\frac{{{7^x}}}{{{{11}^x}}}} dx$