In an arithmetic sequence, a14=-75 and a26=-123 Which recursive formula defines the sequence?
2 answers:
Answer:
A is the correct option.
Step-by-step explanation:
We have been given that
The general term of an arithmetic sequence is given by
Now, for 14th term,
Similarly, for 26th term
Subtract equation 1 and 2
From equation 1
Hence, the first term is
Now, since the common difference d is -4.
Hence, the recursive formula is
Just took the test. The answer is definitely A.
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