Math, asked by divyanamratha12, 9 hours ago

find the sum of an ap 3,7,11,...,up to 13 term i asked till 13 term​

Answers

Answered by faleehamanal
2
A.P = 3, 7, 11,….

a = 3
d = 7 - 3 = 4
n = 13
Sₙ = ?

Sₙ = a + (n - 1)d
Sₙ = 3 + (13 - 1) x 4
Sₙ = 3 + 12 x 4
Sₙ = 3 + 48
Sₙ = 51

Hope it helps you
Mark me as a brainlist please ❤️
Bye ☺️
Answered by nikhilrajgone2008
1

Step-by-step explanation:

please make as thanks

please make as thanks

Attachments:
Similar questions