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The sum of the first n terms of a certain sequence is n(n + 1)(n - 2). Find the tenth term of the sequence.

 Jun 22, 2022
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Sum of first ten terms  -  Sum of first nine terms =   tenth term  ......so....

 

(10)(10+1)(10-2)  -  (9) (9 + 1) (9 - 2)   =

 

880  -    630   =  

 

250  = tenth term

 

 

cool cool cool

 Jun 22, 2022

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