<P>ÇÔ¼ö¿¡¼ Æò±Õ°ª Á¤¸®¸¦ ¸¸Á·ÇÏ´Â ½Ç¼ö c¸¦ ±¸ÇÏ´Â ¹®Á¦Àä,</P> <P>´ä°ú Á¦°¡ Ǭ °Ô Ʋ·Á¼¿ä. ¸¶¶¥È÷ ¿©ÂÞ¾î º¼ °÷ÀÌ ¾ø¾î¼ ¿©±â¿¡ ÀÚ²Ù ¿Ã¸®°Ô µÇ³×¿ä.</P> <P>±¦ÂúÁÒ?^^</P> <P>f(x) = <COMMENT class=MATH>[0]#wh4/5.6`5.3/12,[1]{sqrt{x}}</COMMENT> [1,2] </P> <P>1°ú 2 »çÀÌÀÇ Æò±Õ ±â¿ï±â¿Í °°Àº Á¢¼±ÀÇ ±â¿ï±â¸¦ °®´Â x¸¦ ±¸ÇÏ´Â °Çµ¥¿ä..</P> <P>Àú ÀÌ°Å f'(x) = 1/2<COMMENT class=MATH>[0]#wh4/5.6`5.3/12,[1]{sqrt{x}}</COMMENT> = <COMMENT class=MATH>[0]#wh4/5.4`5.3/12,[1]{sqrt{2}}</COMMENT>-1</P> <P> (<COMMENT class=MATH>[0]#wh4/5.4`5.3/12,[1]{sqrt{2}}</COMMENT>+1)/2 = <COMMENT class=MATH>[0]#wh4/5.6`5.3/12,[1]{sqrt{x}}</COMMENT></P> <P> (3+ 2<COMMENT class=MATH>[0]#wh4/5.4`5.3/12,[1]{sqrt{2}}</COMMENT>)/4 = x ÀÌ·¸°Ô ³ª¿Ô°Åµç¿ä. ±Ùµ¥, ´ä¿¡¼± x= (3- 2<COMMENT class=MATH>[0]#wh4/5.4`5.3/12,[1]{sqrt{2}}</COMMENT>)/4 ¶ó³×¿ä.</P> <P> ¾îµð°¡ Ʋ¸° °Å¶ó¿ä? ÀÚ²Ù ºÁµµ ¸ð¸£°Ú¾î¿ä.</P>