Question

qual a razao da pa onde a1=-6 e a36=4?

Answer 1

a₃₆ = 4 
an = a₁ + (n-1).r
a₃₆ = -6 + (36 -1).r
4 = -6 + 35r
4+6 = 35r
10 = 35r
r = 10/35
r = 2/7