Question

CALCULE O N° DE TERMOS DA P.A (-2,-7/4,...,0)

Answer 1

r = -7/4 - ( -2) 
r = 1/4

an = 0

an = a1 + ( n-1).r
 0  = -2  + ( n-1).1/4
+2 = ( n-1).1/4
4.2 = n-1
  8  = n-1
  n  =  9

9 Termos ao todo