ACTIVITY 2: Find my sum.. A. Find the following:
ACTIVITY 3: Matching the correct sum.. Match the sequences given in Column A with the correct sum of finite terms in Column B. Write the letters only.
Thank you In Advance!
ACTIVITY 3: Matching the correct sum.. Match the sequences given in Column A with the correct sum of finite terms in Column B. Write the letters only.
Thank you In Advance!
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Step-by-step explanation:
ACTIVITY 2
1.) a1 = 6 , last term = 412
sn=n(a1+an) / 2
get the common difference:
d = a2 - a1
= 13 - 6
= 7
find the N since we don't have n :
use : an=a1 + (n-1) d
412 = 6 + (n-1) 7
= 6 + 7n - 7
= -1 + 7n
412 + 1 = 7n
413 / 7 = 7n /7
59 = n, now we have the n solve for the sum :
sn = n(a1 + an ) /2
= 59 ( 6 + 412 ) /2
=( 59 • 418 ) / 2
= 24662 / 2
= 12 331
2.) Sn = -6 615
3.) Sn = 1 742
4.) Sn = 2,327
5.) Sn = 15,405
If the activity needs solution, you can solve it using the formulas and the solution I provided above.
activity 3
1. F
2. C
3. D
4. J
5. G
6. B
7. H
8. A
9. E
10. I