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11. What is the third term of the recursive sequence below? a1=-6 an=1/2an-1-n Hurryy plzzz
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11. What is the third term of the recursive sequence below? a1=-6 an=1/2an-1-n
Hurryy plzzz

11. What is the third term of the recursive sequence below? a1=-6 an=1/2an-1-n Hurryy-example-1
User Affan Shahab
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1 Answer

3 votes

Answer:

a

Explanation:


a_(1) = -6\\\\a_(n)=(1)/(2)a_(n-1) - n\\\\a_(2)=(1)/(2)a_(1)-2\\\\ = (1)/(2)*(-6)-2\\\\ = -3 - 2\\\\= -5\\\\a_(3)=(1)/(2)a_(2)-3\\\\= (1)/(2)*(-5)-3\\\\=(-5)/(2)-3\\\\= (-5)/(2)-(3*2)/(1*2)\\\\=(-5)/(2)-(6)/(2)\\\\=(-11)/(2)

User Volodymyr Lykhonis
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