Question

trem of ap 5,9,13...is 209​

Answer 1

Answer:

n = 52

Step-by-step explanation:

A.P: 5,9,13..................209

first Term(a) = 5

common difference (D) = 9-5=4

= 13-9=4

209 = 5+(n-1)4

209-5 = (n-1)4

204 = (n-1)4

204/4=n-1

51=n-1

51+1= n

52 = n