Respuesta:
[tex]a_{15} = - 20 + (15 - 1)4 \\ a_{15} = - 20 + (14)4 \\ a_{15} = - 20 + 56 \\ a_{15} = 36[/tex]
Es 36
[tex]a_{9} = 4 \times ( { - 2})^{9 - 1} \\ a_{9} = 4 \times ( { - 2})^{8} \\ a_{9} = 4 \times256 \\ a_{9} = 1024[/tex]
Es 1024
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Verified answer
Respuesta:
[tex]a_{15} = - 20 + (15 - 1)4 \\ a_{15} = - 20 + (14)4 \\ a_{15} = - 20 + 56 \\ a_{15} = 36[/tex]
Es 36
[tex]a_{9} = 4 \times ( { - 2})^{9 - 1} \\ a_{9} = 4 \times ( { - 2})^{8} \\ a_{9} = 4 \times256 \\ a_{9} = 1024[/tex]
Es 1024