國中數學二下1-2
Authored by 康軒 國中
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8th Grade
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10 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
以下何者為等差級數？_x000B_
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
以下何者為等差級數？_x000B_
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
設一等差級數前31項總和為1490，前30項總和為980，則此級數第31項為多少？_x000B_
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
若一等差級數的前9項和為72，第9項為20，則下列敘述何者正確？_x000B_
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
若一等差級數的前四項分別為a，a＋d，a＋2d，a＋3d，則此等差級數前十項之和為多少？(以a、d表示)_x000B_
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
教室內有5排座位，每一排座位數均比前一排座位數多1個，第一排共有3個座位，請問此教室共有幾個座位？_x000B_
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
表演廳有10排座位，每一排座位數均比後一排座位數少2個，最後一排共有30個座位，請問此表演廳共有幾個座位？_x000B_
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