Plzzzzz friends. solve it
Attachments:
Answers
Answered by
3
Here is your answer....
Attachments:
sahilkhan3344:
So thnx
Answered by
4
Heya!!
Tn = Sn - Sn-1
Tn = 5n² +11n - { 5(n-1)² + 11 ( n -1 ) }
Tn = 5n² + 11n - { 5n² + 5 -10n + 11n -11}
Tn = 11n -n + 6
Tn = 10n + 6
Tn = Sn - Sn-1
Tn = 5n² +11n - { 5(n-1)² + 11 ( n -1 ) }
Tn = 5n² + 11n - { 5n² + 5 -10n + 11n -11}
Tn = 11n -n + 6
Tn = 10n + 6
Thnx yaar
Similar questions