Question

a= -18.9
d=2.5
n=?
an = 3.6

Find N

If this is an AP

Answer 1

Hope my answer helps you mate

Dont forget to see me in leaderboard ❣️

Answer 2

Step-by-step explanation:

Question :-

• a= -18.9 d=2.5 n=? an = 3.6 Find N If this is an AP

Given :-

• a= -18.9
• d=2.5
• an = 3.6

To find :-

• Find N If this is an AP

solution :-

3.6 = -18.9 +(n - 1) 2.5

22.5 = (n-1)2.5

n- 1 = 22.5/2 .5

n-1 = 9