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( )9. 下列有關平方根的計算,何者錯誤?(A) = (B) =-7(C) =0.5 (D)=70
問題詳情
( )9. 下列有關平方根的計算,何者錯誤?
(A)
=
(B)
=-7
(C)
=0.5
(D)
=70
參考答案
上一篇 :
9. 下列何者為一元二次方程式 (x+4)(x-3)=0 的解?(4-1)(A) 4和-3 (B) -4和3 (C) -4和-3 (D) 4和3
下一篇 :
23. 如上圖十,桌面上有一顆圓錐形巧克力,O是圓錐頂點,P是底面圓周上一點,底圓周長為2πcm, = 3cm,今有一隻螞蟻由P點出發繞圓錐側面一圈後回到P點,請問:螞蟻走的最短距離是多少 cm?
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