Question

If s= n (5n-3)for all values of n find the pth terms

Answer 1

Answer:

Heya user !!!

Here's the answer you are looking for

The sum of n terms or Sn = n (5n - 3)

So S1 = 1(5-3) = 2

Sum of one term means the first term itself that is a1

So a1 is 2

Now S2 = 2(10-3) = 14

S2 means sum of first 2 terms

So a1 + a2 = 14

a2 = 14 - a1 = 14 - 2 =12

a2 = 12

Also,

a2 = a1 + d

12 = 2 + d

d = 10

Thus the AP is 2, 12, 22, 32.....

★★ HOPE THAT HELPS ☺️ ★★