Free help with homework

Why join Brainly?

  • ask questions about your assignment
  • get answers with explanations
  • find similar questions


Since the formula of sun of nth term in A.P is n/2{2a+(n-1)d}nowS1=n/2{2a+(n-1)d}S2=2n/2{2a+(2n-1)d}S3=3n/2{2a+(3n-1)d}S2-S1=n/2{2a+(3n-1)d}
hpe i helped u plz mark as brainiest answer plz
1 5 1
there is gaps in between them i cannot edit
The Brain
  • The Brain
  • Helper
Not sure about the answer?
Learn more with Brainly!
Having trouble with your homework?
Get free help!
  • 80% of questions are answered in under 10 minutes
  • Answers come with explanations, so that you can learn
  • Answer quality is ensured by our experts