#1
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àŢ¡¡ÓÅѧ¤ÃѺ
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$\frac{2^{3n-3}+2^{2n-1}-5\bullet 2^{n-1}-6}{2^{2n-2}+2^{n-1}-6}$
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I think you're better than you think you are. 31 ¾ÄÉÀÒ¤Á 2008 10:30 : ¢éͤÇÒÁ¹Õé¶Ù¡á¡éä¢áÅéÇ 1 ¤ÃÑé§, ¤ÃÑé§ÅèÒÊØ´â´Â¤Ø³ RETRORIAN_MATH_PHYSICS |
#2
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·´ÅͧÊÁÁµÔ $x=2^{n-1}$ ÊÔ¤ÃѺ
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¤¹ä·ÂÃèÇÁã¨ÍÂèÒãªéÀÒÉÒÇÔºÑµÔ ½Ö¡¾ÔÁ¾ìÊÑÅѡɳìÊÑ¡¹Ô´ ªÕÇÔµ(¤¹µÍºáÅФ¹¶ÒÁ)¨Ð§èÒ¢Öé¹àÂÍÐ (¨ÃÔ§æ¹Ð) Stay Hungry. Stay Foolish. |
#3
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áÅéǾÕèä´é¤ÓµÍºà·èÒäËÃè¤ÃѺ
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I think you're better than you think you are. |
#4
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$2^{n-1}+1$ àÁ×èÍ $n\ne2$ ¤ÃѺ
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¤¹ä·ÂÃèÇÁã¨ÍÂèÒãªéÀÒÉÒÇÔºÑµÔ ½Ö¡¾ÔÁ¾ìÊÑÅѡɳìÊÑ¡¹Ô´ ªÕÇÔµ(¤¹µÍºáÅФ¹¶ÒÁ)¨Ð§èÒ¢Öé¹àÂÍÐ (¨ÃÔ§æ¹Ð) Stay Hungry. Stay Foolish. |
#5
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Thank you P'tum.
¶éÒäÁèú¡Ç¹ÍÂÒ¡·ÃÒºÇԸշӢͧ¾Õè¤ÃѺ ÇèÒàËÁ×͹¡Ñ¹äËÁ
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I think you're better than you think you are. 22 ¾ÄÉÀÒ¤Á 2008 20:44 : ¢éͤÇÒÁ¹Õé¶Ù¡á¡éä¢áÅéÇ 1 ¤ÃÑé§, ¤ÃÑé§ÅèÒÊØ´â´Â¤Ø³ RETRORIAN_MATH_PHYSICS |
#6
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¡çËÅѧ¨Ò¡á·¹áºº·Õè¼ÁºÍ¡´éÒ¹º¹ ¨Ðä´éÇèÒ $$\frac{x^3+2x^2-5x-6}{x^2+x-6}=\frac{(x+3)(x-2)(x+1)}{(x+3)(x-2)}=x+1$$
·ÕèàËÅ×ͤ×Í¡ÒþԨÒóÒà§×è͹䢷Õè·ÓãËéà¡Ô´ 0/0 ¤ÃѺ
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¤¹ä·ÂÃèÇÁã¨ÍÂèÒãªéÀÒÉÒÇÔºÑµÔ ½Ö¡¾ÔÁ¾ìÊÑÅѡɳìÊÑ¡¹Ô´ ªÕÇÔµ(¤¹µÍºáÅФ¹¶ÒÁ)¨Ð§èÒ¢Öé¹àÂÍÐ (¨ÃÔ§æ¹Ð) Stay Hungry. Stay Foolish. |
#7
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ÍéÒ§ÍÔ§:
¤×ͼÁÅͧËÒàÅ¢¨Ó¹Ç¹àµçÁÁÒÅͧ´Ù ¡ç»ÃÒ¡®ÇèÒÁѹä´é áµè¼Á´ÙäÁèÍÍ¡ÍèФÃѺÇèÒÁѹà»ç¹ÁÒÍÂèÒ§äÃ
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I think you're better than you think you are. 22 ¾ÄÉÀÒ¤Á 2008 21:58 : ¢éͤÇÒÁ¹Õé¶Ù¡á¡éä¢áÅéÇ 1 ¤ÃÑé§, ¤ÃÑé§ÅèÒÊØ´â´Â¤Ø³ RETRORIAN_MATH_PHYSICS |
#8
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$2^{2n-1}=2\cdot2^{2n-2}=2\cdot(2^{n-1})^2$
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¤¹ä·ÂÃèÇÁã¨ÍÂèÒãªéÀÒÉÒÇÔºÑµÔ ½Ö¡¾ÔÁ¾ìÊÑÅѡɳìÊÑ¡¹Ô´ ªÕÇÔµ(¤¹µÍºáÅФ¹¶ÒÁ)¨Ð§èÒ¢Öé¹àÂÍÐ (¨ÃÔ§æ¹Ð) Stay Hungry. Stay Foolish. |
#9
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¢Íº¤Ø³¤ÃѺ ¾Õè à¢éÒã¨ËÁ´áÅéÇ
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I think you're better than you think you are. |
#10
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áÅéÇ -6 ÁÒ¨Ò¡ä˹§Òººº
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