Ask
your own question, for FREE!
Mathematics
4 Online
OpenStudy (anonymous):
a. 1+2+3+4+....+998 b. 1+3+5+7+...+1003 a. The sum of the sequence is? b. The sum of the sequence is?
Still Need Help?
Join the QuestionCove community and study together with friends!
OpenStudy (anonymous):
a.=Sum from n=1 to 998 [n]=(998+1)*998/2=498501 b.= Sum from n=1 to 52 [2n-1]=2*(Sum from n=1 to 52)-52= 2*((52+1)*52/2)-52=(53)*52-52=52*52=2704
OpenStudy (anonymous):
Wasn't it 1 3 5 ... 103? My bad :s b.= Sum from n=1 to 502 [2n-1]=2*(Sum from n=1 to 502)-502= 2*((502+1)*502/2)-502=(503)*502-502=502*502=252004
Can't find your answer?
Make a FREE account and ask your own questions, OR help others and earn volunteer hours!
Join our real-time social learning platform and learn together with your friends!
Join our real-time social learning platform and learn together with your friends!
Latest Questions
DoltonCarlee:
what are y'all's options on S A T essays because honestly their not that bad
thereneelg:
Can someone give me a summary of article 231, The war guilt clause?? I need to explain what it is, but I can't find any shortened version of what it is and
luisaam2:
What should you do when the person you want to talk to the most is the one making
Breathless:
https://medal.tv/games/roblox/clips/nAYivIl6oXB6q9QAI?invite=cr-MSxCSk4sMTY4OTA4N
Twaylor:
I'm not that good at law can someone fact check this without bias? June 29, 2026, the Supreme Court decided Chatrie v.
Demon25:
For a hoco proposal with a cheerleader and football player, what else should be a
DoltonCarlee:
what are y'all's options on S A T essays because honestly their not that bad
10 hours ago
4 Replies
2 Medals
thereneelg:
Can someone give me a summary of article 231, The war guilt clause?? I need to explain what it is, but I can't find any shortened version of what it is and
1 day ago
7 Replies
1 Medal
luisaam2:
What should you do when the person you want to talk to the most is the one making
15 hours ago
16 Replies
1 Medal
Breathless:
https://medal.tv/games/roblox/clips/nAYivIl6oXB6q9QAI?invite=cr-MSxCSk4sMTY4OTA4N
1 week ago
0 Replies
0 Medals
Twaylor:
I'm not that good at law can someone fact check this without bias? June 29, 2026, the Supreme Court decided Chatrie v.
1 week ago
0 Replies
0 Medals
Demon25:
For a hoco proposal with a cheerleader and football player, what else should be a
1 week ago
12 Replies
0 Medals
