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#1
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àºÒæ ÍÕ¡«Ñ¡¢éÍÅСѹ
ÁÕ⨷Âì¢é͹֧ÁÒ¶ÒÁ¤ÃѺÅͧ´Ù¡Ñ¹
¼ÅÊÓàÃ稢ͧ 5-\frac{1}{2-\frac{1}{2-\frac{1}{2-...} } } ÁÕ¤èÒà·èҡѺà·èÒã´ 1. 3 2. 3\frac{1}{2} 3. 4 4. 4\frac{1}{2} |
#2
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µéͧ¢Íâ·É´éǹФÃѺÁ×ÍãËÁèËÑ´·Óà´ÕÂǾÔÁ¾ìãËÁèáÅéǡѹ
¼ÅÊÓàÃ稢ͧ 5-$\frac{1}{2-\frac{1}{2-\frac{1}{2-...} } }$ ÁÕ¤èÒà·èҡѺà·èÒã´ 1)3 2) 3$\frac{1}{2}$ 3) 4 4) 4$\frac{1}{2}$ |
#3
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µÍº¢éÍ 3 - -a
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àÁ×èÍäÃàÃÒ¨Ðà¡è§àÅ¢¹éÒÒÒÒÒÒ ~~~~ T T äÁèà¡è§«Ñ¡·Õ ·Óä§´Õ |
#4
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ÍéÒ§ÍÔ§:
$\frac{1}{2-x } = x$ $x^2 -2x+1 =0$ $(x-1)^2 =0$ $x=1$ 5-$\frac{1}{2-\frac{1}{2-\frac{1}{2-...} } } = 5 - 1 =4$
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ÁÒËÒ¤ÇÒÁÃÙéäÇéµÔÇËÅÒ¹ áµèËÅÒ¹äÁèàÍÒàÅ¢áÅéÇ à¢éÒÁÒ·ÓàÅ¢àÍÒÁѹÍÂèÒ§à´ÕÂÇ ¤ÇÒÁÃÙéà»ç¹ÊÔè§à´ÕÂÇ·ÕèÂÔè§ãËé ÂÔè§ÁÕÁÒ¡ ÃÙéÍÐäÃäÁèÊÙé ÃÙé¨Ñ¡¾Í (¡àÇ鹤ÇÒÁÃÙé äÁèµéͧ¾Í¡çä´é ËÒäÇéÁÒ¡æáËÅдÕ) (áµè¡çÍÂèÒãËéÁÒ¡¨¹·èÇÁËÑÇ àÍÒµÑÇäÁèÃÍ´) |
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