2 years ago

If a1=7 and an=an-1+5 than find the value of a5 .

Mathematics

1 answer:

Katyanochek1 [597]2 years ago

4 0

Answer:

a₅=27.

Step-by-step explanation:

1) according to the condition the given subsequence is arithmetic sequence. It means, the a₁=7 and d=5, then

2) a₅=a₁+4*d; => a₅=7+4*5=27.

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