Did I solve the question correctly? (my work is the second picture.) 

2) a1 5
an = an-3
Transcribed Image Text

2) a1 5 an = an-3

a-0n- 3
3ra31 3 as = 4y-1
a3Is 3
as= 135 3
as= 405
an-art 3
Transcribed Image Text

4,-5 a-0n- 3 3ra31 3 as = 4y-1 4a-43-1 a3Is 3 as= 135 3 a3 as= 405 s3 an-art 3 4-45-3 135 SH

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