Question

interpole 9 meios aritmeticos entre -10 e 50

Answer 1

interpole 9 meios aritmeticos entre -10 e 50

-10,___,___,___,___,___,____,___,___,____50


An = A1 + (N - 1)*R
50 = (-10) + (11 - 1)*R
50 = (-10) + 10R
10R + (-10) = 50
10R = 50 - (-10)
10R = 60
R = 60/10
R = 6


Comprovando

PA = ( -10,-4,2,8,14,20,26,32,38,44,50)


Resposta : R = 6