What does LaTeX: \int_{1}^{2}x\ln{x}dx 2 1 x ln x d x equal? LaTeX: -2\ln{2} - \frac{3}{4} LaTeX: -2\ln{2} + \frac{1}{4} LaTeX: 2\ln{2} - \frac{3}{4} LaTeX: 2\ln{2} + \frac{1}{4}