Câu 6:Trang 127-sgk giải tích 12
Tính:
a) $\int_{0}^{\frac{\prod }{2}}\cos 2x\sin ^{2}xdx$
b) $\int_{-1}^{1}\left |2^{x}-2^{-x} \right |dx$
c) $\int_{1}^{2}\frac{(x+1)(x+2)(x+3)}{x^{2}}dx$
d) $\int_{0}^{2}\frac{1}{x^{2}-2x-3}dx$
e) $\int_{0}^{\frac{\prod }{2}}(\sin x+\cos x)^{2}dx$
g) $\int_{0}^{\prod }(x+\sin x)^{2}dx$
Bài Làm: