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Clearnote
Q&A
Senior High
Mathematics
想問這兩題,感謝🙏
Mathematics
Senior High
2 daysago
阿巴布拉布
想問這兩題,感謝🙏
LANS (4)】 0 13.有一邊長為3的正六邊形紙板,今在每一個角各剪掉一個小三角形,使其成為正十二邊 之紙板,則此正十二邊形之一邊長為 【86學測】 (A)1 (B)¹³ (C)√3 (D) 3√3-3 (E) 6√3-9 3
類題1.△ABC中,∠ABC=∠ACB=36°,AB=AC=1,試求cos36° 答: √√5+1 4 1836.56.3.2 = 008 15
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