NEED SOLUTION (ALL QUESTIONS)

Exercise No. 1

Directions: Answer the following question. Show your solution. (without using the

formula)

What is the sum of the terms of each finite sequence below?

1. 1, 4, 7, 10

2. 3, 5, 7, 9, 11

3. 10, 5, 0, -5, -10, -15

4. 81, 64, 47, 30, 13, -4

5. -2, -5, -8, -11, -14, -17

Exercise No. 2

Directions: Each row of the table contains the values of three quantities a1, d, an, or

Sn of an arithmetic sequence. Complete the table below by solving the other two.

Show your solution.

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