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27-11-2017
Mathematics

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What is the 3rd term of the sequence?
a1 = 40 and an = 0.5(an – 1)
a3 =

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jdoe0001 jdoe0001

27-11-2017

[tex]\bf \begin{array}{llll} term&value\\ \text{\textemdash\textemdash\textemdash}&\text{\textemdash\textemdash\textemdash}\\ a_1&40\\\\ a_2&0.5(a_{n-1})\\ &0.5(a_{2-1})\\ &0.5(a_1)\\ &0.5(40)\\ &20\\\\ a_3&0.5(a_{3-1})\\ &0.5(a_2)\\ &0.5(20) \end{array}[/tex]

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