Mathematical Induction question

Join the discussion
Ask a follow-up here, or get your own question answered by working scientists, mathematicians and engineers — people, not an autocomplete.
Real named experts · corrections over time · the nuance an AI answer skips
1 replies · 6K views
tcesni
Messages
3
Reaction score
0
I need help getting started on using Mathematical Induction with this problem...
so what should i do first?

a + (a+d)+(a+2d)+...+[a+(n-1)d] = (n/2)[2a+(n-1)d]
 
on Phys.org
never mind...i found the answer