Sum of first nth term (3n^2 )-(n) thenfind 3rd term of ap
Answers
Answered by
0
HERE IS YOUR ANSWER
Sn = 3n^2 - n
S1 = 3(1) - 1
= 2
S1 = 1st term of the A.P = A1 = 2
S2 = A1 + A2 = 3(4) - 2
2 + A2 = 10
A2 = 8
S3 = A1 + A2 + A3 = 3(9) - 3
= 2 + 8 + A3 = 24
A3 = 14
3rd term of A.P is A3 = 14
HOPE MY ANSWER IS CORRECT
Sn = 3n^2 - n
S1 = 3(1) - 1
= 2
S1 = 1st term of the A.P = A1 = 2
S2 = A1 + A2 = 3(4) - 2
2 + A2 = 10
A2 = 8
S3 = A1 + A2 + A3 = 3(9) - 3
= 2 + 8 + A3 = 24
A3 = 14
3rd term of A.P is A3 = 14
HOPE MY ANSWER IS CORRECT
Similar questions