Help with summation induction
56365
Evaluate $\sum\limits_{k=1}^{n} \frac{k}{2^k}$
29804
Summation with jump indices like 1,4,6,9?
73938
Prove that $\sum_{r=1}^nr(r+1)=\frac{n(n+1)(n+2)}{3}$ using induction
155897
Proof by induction - is this correct?
146274
Fastest way to do this double summation?
63474
Showing $\sum_{i = 1}^n\frac1{i(i+1)} = 1-\frac1{n+1}$ without induction?
31900
Induction on Real Numbers
18301
Proof by Induction involving Inequality and Factorials as denominators
103347
combinatorial proof of summation
119606
Closed form of summation
44577
Finding a formula to sum natural numbers up to $n$
155250
Summation Series for fractions
108274
Sum of the first $n$ triangular numbers - induction
65315
Showing $1+2+\cdots+n=\frac{n(n+1)}{2}$ by induction (stuck on inductive step)
110975
Summation of reciprocals
118387
How to extend summations to fractional orders?
92046
Proving $\sum\limits_{i=0}^n  i 2^{i-1} = (n+1) 2^n - 1$ by induction