Question 1

จงแสดงว่า $\sum_{i=1\ }^{10}3=30$

Accepted Answer

30

Answer

40

Answer

20

Answer

50

Question 2

จงแสดงว่า $\sum_{i=1\ }^{10}3=30$

Accepted Answer

24

Answer

32

Answer

42

Answer

25

Question 3

จงเขียน $\sum_{i=1\ }^{10}3=30$ โดยใช้สัญลักษณ์

Accepted Answer

$\sum_{i=1\ }^52ix^i$

Answer

$\sum_{i=1\ }^52ix^i$

Answer

$\sum_{i=1\ }^52ix^i$

Answer

$\sum_{i=1\ }^52ix^i$

Question 4

จงหาค่า $\sum_{i=1\ }^{10}3=30$

Accepted Answer

$\sum_{i=1\ }^52ix^i$

Answer

$\sum_{i=1\ }^52ix^i$

Answer

$\sum_{i=1\ }^52ix^i$

Answer

$\sum_{i=1\ }^52ix^i$

Question 5

จงหาค่า $\sum_{i=1\ }^{10}3=30$

Accepted Answer

$\sum_{i=1\ }^52ix^i$

Answer

$\sum_{i=1\ }^52ix^i$

Answer

$\sum_{i=1\ }^52ix^i$

Answer

$\sum_{i=1\ }^52ix^i$

Question 6

จงหาค่า $\sum_{i=1\ }^{10}3=30$

Accepted Answer

$\sum_{i=1\ }^52ix^i$

Answer

$\sum_{i=1\ }^52ix^i$

Answer

$\sum_{i=1\ }^52ix^i$

Answer

$\sum_{i=1\ }^52ix^i$

Question 7

จงหาค่า $\sum_{i=1\ }^{10}3=30$

Accepted Answer

$\sum_{i=1\ }^52ix^i$

Answer

$\sum_{i=1\ }^52ix^i$

Answer

$\sum_{i=1\ }^52ix^i$

Answer

$\sum_{i=1\ }^52ix^i$

Question 8

$\sum_{i=1\ }^52ix^i$ เขียนแทนโดยใช้สัญลักษณ์ตรงกับข้อใด

Accepted Answer

$\sum_{i=1\ }^52ix^i$

Answer

$\sum_{i=1\ }^52ix^i$

Answer

$\sum_{i=1\ }^52ix^i$

Answer

$\sum_{i=1\ }^52ix^i$

Question 9

$\sum_{i=1\ }^52ix^i$ เขียนแทนโดยใช้สัญลักษณ์ตรงกับข้อใด

Accepted Answer

$\sum_{i=1\ }^52ix^i$

Answer

$\sum_{i=1\ }^52ix^i$

Answer

$\sum_{i=1\ }^52ix^i$

Answer

$\sum_{i=1\ }^52ix^i$

Question 10

ถ้า $\sum_{i=1\ }^{10}3=30$ จงหาค่าของ $\sum_{i=1\ }^5\left(5y_i-50\right)$

Accepted Answer

-200

Answer

200

Answer

250

Answer

-250

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