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Find the 50th term sequence 5 , -2 , -9 , -16

User Nour Helmi
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2 Answers

3 votes

The 50th therm of the sequence is -338

So therefor the answer is -338

User Hsarp
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2 votes
5 - 7 = - 2 ;
- 2 - 7 = - 9 ;
-9 - 7 = -16 ;
"common difference" d is - 7 ;
The n-th term of an arithmetic sequence is of the form an = a1 + (n – 1)d ;
a50 = 5 + 49 × ( - 7 ) = 5 - 343 = - 338;
User Suheb
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