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#1
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![]() ¢Íàà¹Ç¤Ô´Ë¹èͤÃѺ
»Å. ⨷Âì¨Ò¡¡ÅØèÁ¤³ÔµÁѸÂÁ»ÅÒ |
#2
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![]() ãªé¡®¢Í§á·¹à¨¹µìàŤÃѺ. (law of tangent)
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#3
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![]() ¢Íº¤Ø³·Ñé§Êͧ·èÒ¹ÁÒ¡¤ÃѺ
»Å. ¡®¢Í§ tangent ¹ÕèÍÂèÒ§äÃËÃ×ͤÃѺ. ¾Í¨ÐÁÕààËÅè§ÈÖ¡ÉÒà¾ÔèÁàµÔÁËÃ×Í»èÒǤÃѺ ? |
#4
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![]() ÍéÒ§ÍÔ§:
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#5
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![]() ¢Íº¤Ø³ÍÕ¡¤ÃÑ駤ÃѺ
¾Í´Õ¹Ö¡ÇèÒ ¤Ø³ gon à¢Õ¹à»ç¹º·¤ÇÒÁäÇé¤ÃѺ. |
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