1 Mozilla/5.0 (Windows NT 5.1; rv:20.0) Gecko/20100101 Firefox/20.0 /rde/contents/library/ps2img/cgi-bin/eqn2gif.cgi 157.118.3.12 1366795830 2013/04/24 18:30:30 \begin{array}{r l l} 45&\displaystyle =\left(\frac{45+1}{2}\right)^2-\left(\frac{45-1}{2}\right)^2&=23^2-22^2\\ 45&\displaystyle =\left(\frac{15+3}{2}\right)^2-\left(\frac{15-3}{2}\right)^2&=9^2-6^2\\ 45&\displaystyle =\left(\frac{9+5}{2}\right)^2-\left(\frac{9-5}{2}\right)^2&=7^2-2^2 \end{array} 2 <IMG SRC="../cgi-cache/20130424_183022.gif"> ______ 正常に処理されました 20130424_183022 Wed Apr 24 18:30:30 2013