The first term and the common difference of an A.P. is 10 and 5 respectively. Complete the following activity to find the sum of first 30 terms of the A.P
Answers
Answered by
59
hope it helps
pls mark it as the brainliest answer :)
Attachments:
Answered by
9
Answer:
It is 2475.
Step-by-step explanation:
Sn= n/2 [2a + (n-1)d]
S30=30/2 [20 + (30-1) ×5]
=15 [20 + 145]
= 15×165
= 2475
Hope it will help uhh...
Similar questions