5 Mozilla/5.0 (Windows NT 6.1; WOW64; rv:22.0) Gecko/20100101 Firefox/22.0 /rde/contents/library/ps2img/cgi-bin/eqn2gif.cgi 157.118.3.12 1375579553 2013/08/04 10:25:53 (1)log_{2}(x+1)=log_4(x+7) (2)(log_{3}x)^{2}-log_{3}x^{3}+2=0 (3)log_2(x+1)&gt;log_2(4-x^{2})-1 (4)log_\frac{1}{4}(3x^{2}+9)&lt;log\frac{1}{2}(3-2x) _________LaTeX__________________ 13 ______(________________________) <IMG SRC="../cgi-cache/20130804_090615.gif"> ______ 正常に処理されました 20130804_090615 http://www.mech.tohoku-gakuin.ac.jp/rde/contents/library/ps2img/eqn2gif_online.html Sun Aug 4 10:25:53 2013