<P>1. A¿Í BÀÇ ¿ªÇà·ÄÀÌ Á¸ÀçÇÏ°í <STRONG><U>nÀÌ 1ÀÌ ¾Æ´Ñ Ȧ¼öÀÏ ¶§</U></STRONG></P> <P><COMMENT class=MATH>[0]#wh4/17.2`5.6/11,[1]{A{B}^{n}`equal`{B}^{n}A}</COMMENT>À̸é AB=BA°¡ ¼º¸³Çϳª¿ä?</P> <P> </P> <P>2. A¿Í BÀÇ ¿ªÇà·ÄÀÌ Á¸ÀçÇÏ°í <STRONG><U>nÀÌ 3ÀÌ»ó</U></STRONG>ÀÇ ÀÚ¿¬¼öÀÏ ¶§</P> <P><COMMENT class=MATH>[0]#wh4/21.2`5.6/11,[1]{{(AB)}^{n}`equal`{A}^{n}{B}^{n}}</COMMENT>À̸é AB=BA°¡ ¼º¸³Çϳª¿ä?</P> <P> </P> <P>¼º¸³ÇÑ´Ù¸é Áõ¸íÇØÁֽðí</P> <P>¼º¸³ÇÏÁö ¾Ê´Â´Ù¸é ¹Ý·Ê µé¾îÁÖ¼¼¿ä.</P>