menu
QAmmunity.org
Login
Register
My account
Edit my Profile
Private messages
My favorites
Register
Ask a Question
Questions
Unanswered
Tags
Categories
Ask a Question
Let Sn, be the sum of the first n terms of the arithmetic series 2+4+6+.... (a) Find (i) S4 (ii) S100 Answer: 10 100 How do you work it out though?
asked
Aug 17, 2021
147k
views
0
votes
Let Sn, be the sum of the first n terms of the arithmetic series 2+4+6+....
(a)
Find
(i)
S4
(ii) S100
Answer: 10 100
How do you work it out though?
Mathematics
high-school
Isius
asked
by
Isius
6.7k
points
answer
comment
share this
share
0 Comments
Please
log in
or
register
to add a comment.
Please
log in
or
register
to answer this question.
1
Answer
6
votes
i) 20
ii) 19900
formula : sn = n/2[2a+(n-1)d ]
Il Vic
answered
Aug 22, 2021
by
Il Vic
7.3k
points
ask related question
comment
share this
0 Comments
Please
log in
or
register
to add a comment.
Ask a Question
Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.
7.6m
questions
10.2m
answers
Other Questions
How do you can you solve this problem 37 + y = 87; y =
How do you estimate of 4 5/8 X 1/3
i have a field 60m long and 110 wide going to be paved i ordered 660000000cm cubed of cement how thick must the cement be to cover field
Write words to match the expression. 24- ( 6+3)
A dealer sells a certain type of chair and a table for $40. He also sells the same sort of table and a desk for $83 or a chair and a desk for $77. Find the price of a chair, table, and of a desk.
Twitter
WhatsApp
Facebook
Reddit
LinkedIn
Email
Link Copied!
Copy
Search QAmmunity.org