Question

interlopar oito meios aritimeticos entre 2 a 29

Answer 1

a1 = 2
a10 = 29
n = 10 (2 e 29 + 8 meios )

an = a1 + ( n - 1 ) . r

29 = 2 + ( 10 - 1 ) . r

29 = 2 + 9r

29 - 2 = 9r

9r = 27

r = 27/9

r = 3

( 2, 5, 8, 11, 14, 17, 20, 23, 26, 29 )