The first term of an A.P. is 2 and the last term is 50. The sum of all these terms is 442. Find the common difference.
a = 2, l = 50
Sn= 
[a + l]
442 = 
[50 +2]
n = 
= 17
n = 
+ 1
17 = 
+ 1
16d = 48
d = 3
8
The first term of an A.P. is 2 and the last term is 50. The sum of all these terms is 442. Find the common difference.
a = 2, l = 50
Sn= [a + l]
442 = [50 +2]
n = = 17
n = + 1
17 = + 1
16d = 48
d = 3