kaydeemyladyy
kaydeemyladyy
02-12-2017
Mathematics
contestada
Help please !!!!!!!!!!
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WojtekR
WojtekR
02-12-2017
[tex]\boxed{a_1=0.5}\\\\\\a_n=4\cdot a_{n-1}\quad|:a_{n-1}\\\\\\\dfrac{a_n}{a_{n-1}}=4\\\\\\\boxed{r=4}[/tex]
so:
[tex]a_n=a_1(r)^{(n-1)}\\\\\boxed{a_n=0.5\cdot4^{(n-1)}}[/tex]
Answer C.
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