Question

1- Calcule o décimo termo da PA(4,10,16,....)
2- Calcule o quinto termo da P.G. (3,9,....)

Answer 1

1- a10=a1+9r                        2-a5=a2 . q³
                                                 a5=9 . 3³
     a10=4+9.6                           a5=9 . 27
                                                 a5= 243
     a10=4+54

     a10=58