Joyce H.
asked • 05/10/21Sequences and Their Notations
a_1=3
a_(n+1)=5/a_n+4
a_2=?
a_3=?
a_4?
a_5?
Please hurry! Thanks!
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1 Expert Answer
Sunny X. answered • 05/10/21
Tutor
New to Wyzant
Experienced Math Tutor and USC Masters Graduate
a_2 = 5/[(a_1) + 4] = 5/(3+4) = 5/7
I'm sure you can figure it out from there.
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Philip P.
Hmm, when a student needs an answer in a hurry, it's a red flag to tutors that it's a test question. The second line is the rule to find the next entry (a_n+1) assuming you know a_n. I'm not sure if it's (5/an) + 4 or 5/(an + 4). For example, a2 = 5/a1 + 4 = 5/3 + 4 = 5 2/3. a3 = 5/a2 + 4, etc. Just follow the rule and you can get all of the values.05/10/21