if 1+2+3+4....+n = n(n+1)/2 , then find 11+12+13...+30
Share
if 1+2+3+4....+n = n(n+1)/2 , then find 11+12+13...+30
Sign Up to our social questions and Answers Engine to ask questions, answer people’s questions, and connect with other people.
Login to our social questions & Answers Engine to ask questions answer people’s questions & connect with other people.
Answer:
Step-by-step explanation: