2n 1 - 2n 2n. On An efficient approach is to find the 2n1 and subtract 1 from it since we know that 2n can be written as. 2 4 6 8 100 se da factor comun 2 si se aplica prima formula.
14n4 12n3 14n2 14n2n2 2n 1 14n2n 12.
An nn-12 n2-n2 or use the same formula you started with you dont have to simplify what is useful about the formula is well how many high fives would take place if i had 502 students presentjust plug it into the formula as n simple calculation. The geometry behind this see 600 httpsyoutubepxYhN3hvKXM by MaxMath inductionProve by induction Sum of the first n cubes blackpenredpen math for. 2n2¹ - 1 Simplify. N N 1 NN 1 2 N 1 N 1N 2 1 N 1N 2 2.