Answer:
Step-by-step explanation:
We have
To prove that by induction
Let P(n) be that statement for n
n=1 gives left side =1 =right side
True for n=1
Assume that P(k) is true
i.e.
We have to prove P(k+1) is true assuming P(k)
LHS of
RHS =
since by adding last term with Ck gives the sum
For simplification take (k+1) square outside
RHS =
Thus proved by mathematical induction