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pashok25 [27]
3 years ago
8

The 15th term of an arithmetic sequence is 21 and the common difference is -4.

Mathematics
1 answer:
NikAS [45]3 years ago
6 0

Answer:

a. Firat term of the sequence= 77

b. 29th term of the sequence= -35

c. Sum of the first 40 terms of the sequence= -40

Step-by-step explanation:

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