Question

dada a sequencia definida po an=4n-1 calcule

a) a1+2a4 b) (a5)2+(a6)2

Answer 1

a)A1= 4*1-1=3
A4= 4*4-1= 15

7+2*15=37

b) A5=4*5-1= 19
A6=4*6-1=23
(19)2+(23)2
38+46=84