题目19、int_(0)^1(sinsqrt(x+1))/(sqrt(x+1))dx=2(cossqrt(2)-cos1)A. 正确B. 错误19、$\int_{0}^{1}\frac{\sin\sqrt{x+1}}{\sqrt{x+1}}dx=2(\cos\sqrt{2}-\cos1)$A. 正确B. 错误题目解答答案B. 错误