find the sum of the terms of an A. P. 2,6,0,114........,32
Answers & Comments
Panzer786
AP = 2,6,10,14,......34 Here, a= 2 , d = t2-t1 = 6-2= 4 an= 34. Sn= ? an= a+ ( n-1) × d 34= a + (n-1) × 4 34 = 2 + 4n -4 34-2+4= 4n 36= 4n n= 36/4= 9 we know that, Sn = n/2 ( 2a + ( n-1) × d put all the value u will get ur answer
Answers & Comments
Here,
a= 2 , d = t2-t1 = 6-2= 4
an= 34.
Sn= ?
an= a+ ( n-1) × d
34= a + (n-1) × 4
34 = 2 + 4n -4
34-2+4= 4n
36= 4n
n= 36/4= 9
we know that,
Sn = n/2 ( 2a + ( n-1) × d
put all the value u will get ur answer