Question

Find 15th term of AP:3,6,9....​

Answer 1

Step-by-step explanation:

t 15=a+14d

t15=3+14×3

t15=3+42=45

Answer 2

Answer:

For AP 3, 6, 9...

a1 = 3, d = 6 - 3 = 3

nth term of AP

an = a1 + (n-1)d

Therefore,

15th term of AP

a15 = a1 + 14d

= 3 + 14*3

= 3 + 42

= 45