Question

1+2+2²+.......2^n+1 for all natural number n ​

Answer 1

Answer:

Since both sides of the equation are now shown to be the same, the equation is therefore true (satisfied), thus showing that the given formula is true for n = k + 1, thus, in turn, showing that when the given formula is true for n = k, it is also true for n = k + 1, and, therefore it is true for all natural numbers