\documentclass{article} \usepackage{german} \begin{document} \begin{eqnarray} \arcsin x & = & -\arcsin(-x) = \frac{\pi}{2} - \arccos x = \left[\arccos\sqrt{1-x^2}\,\right]\nonumber\\ & = & \arctan\frac{x}{\sqrt{1-x^2}} = \left[\mbox{\rm arccot}\frac{\sqrt{1-x^2}}{x}\right] \end{eqnarray} \begin{eqnarray} \lefteqn{f(x+h,y+k) = f(x,y) + \left\{\frac{\partial f(x,y)}{\partial x}h + \frac{\partial f(x,y)}{\partial y}k\right\}}\nonumber\\ &&\mbox{} + \frac{1}{2}\left\{\frac{\partial^2f(x,y)}{\partial x^2}h^2 + 2\frac{\partial^2f(x,y)}{\partial x\partial y}kh + \frac{\partial^2f(x,y)}{\partial y^2}k^2\right\}\\ &&\mbox{} + \frac{1}{6}\{\cdots\} + \cdots + \frac{1}{n!}\{\cdots\} + R_n \nonumber \end{eqnarray} \end{document}