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  4. TVET CHNS,Eng,Maths
  5. 求解
TVET CHNS,Eng,Maths
Senior High
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求解

回 (P [108(B)) FRA Ixodexsin 9 (D) 分针指在3跟4之間。 2. 有一鐵鏈長度為2公尺的歉難,若一小朋友於鉛直方向兩 L 側擺動圓心角各20°至A、B二點如圖,則線段AB 長為多 少公尺? (A) 4sin20° (B) 2 sin 40° (C) 4 cos 20° 7 Ang=2sinzo Ab=4 sine #1106(A)] (3.)吉米在山上有一種酒侣小木层 2 20120° 2 0 (D) 2 cos 40° sinsos AM A 小小口了石

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