0

Guest

Courses New

given the sum of the first 5 terms of an arithmetic progression is -10 and the sum of the second 5 terms is -160. calculate the first term and the common difference of the progression .

given the sum of the first 5 terms of an arithmetic progression is -10 and the sum of the second 5 terms is -160. calculate the first term and the common difference of the progression .

Grade:

1 Answers

Aman Bansal
592 Points
10 years ago

Dear Aira,

The sum of the first n terms of an arithmetic progression is na%2B%28n%28n-1%29r%29%2F2. 
Apply this formula twice to get the answer.

Cracking IIT just got more exciting,It s not just all about getting assistance from IITians, alongside Target Achievement and Rewards play an important role. ASKIITIANS has it all for you, wherein you get assistance only from IITians for your preparation and win by answering queries in the discussion forums. 

https://www.askiitians.com/packages/packages.aspx

So start the brain storming…. become a leader with Elite Expert League ASKIITIANS

Thanks

Aman Bansal

Askiitian Expert

 

 

Think You Can Provide A Better Answer ?

Other Related Questions on Magical Mathematics[Interesting Approach]

View all Questions »

View courses by askIITians

Design classes One-on-One in your own way with Top IITians/Medical Professionals

Click Here Know More

Complete Self Study Package designed by Industry Leading Experts

Click Here Know More

Live 1-1 coding classes to unleash the Creator in your Child

Click Here Know More

a Complete All-in-One Study package Fully Loaded inside a Tablet!

Click Here Know More