3. Analice los siguientes grup

a . 2 , 4 , 6 , 8 , ? ____________________ , ____________________ , ____________________ ____________________ , ____________________


b . 1 , 3 , 5 , 7 , ? ____________________ , ____________________ ____________________ , ____________________ , ____________________


c . 5 , 10 , 15 , 20 , ? ____________________ ____________________ , ____________________ , ____________________


d . 3 , 8 , 20 , 33 , 41 , ? ____________________ ____________________ ____________________ , ____________________ , ____________________