Respuesta :

[tex] a_{n+1}=a_{n} + 0.5 ;a_{1}=2.3 [/tex]
hello :
3.8-3.3 =3.3-2.8=2.8-2.3=0.5 (common diffrence)of aritmetic sequence
a recursive formula for the sequence is : An+1=An +0.5