
อนุกรมเรขาคณิต
Quiz
•
Mathematics
•
11th Grade
•
Medium
กฤติยา บุญเชิด
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10 questions
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1.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
จงหาผลบวก 5พจน์แรกของอนุกรมเรขาคณิต a1= 3 และ r=2
93
96
31
32
2.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
2. ผลบวกของพจน์ทุกพจน์ของอนุกรมเรขาคณิต 1 + 4 + 16 + ... + 1,024 มีค่าเท่ากับเท่าใด
1365
1355
1265
1255
3.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
4. ผลบวก 5 พจน์แรกของอนุกรมเรขาคณิต 81 + 27 + 9 + ... คือข้อใด
111
121
131
141
4.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
7. วีระตั้งใจออมเงินโดยวันแรกเขาเก็บไว้ 1 บาท วันที่สอง 2 บาท วันที่สาม 4 บาท วันที่สี่ 8 บาท เป็นเช่นนี้ไปเรื่อย ๆ จนครบ 10 วัน วีระจะมีเงินออมทั้งหมดเท่าใด
1,024 บาท
1,023 บาท
1,003 บาท
512 บาท
5.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
6
7
8
9
6.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
ผลบวกของพจน์ทุกพจน์ของอนุกรมเรขาคณิต
9 + 27 + 81 + ... +2,187 คือข้อใด
2,178
3,078
3,278
3,287
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