bantuinnnnn zzzzzzzzz ntr saya jadikan jawaban terbaik( ⚈̥̥̥̥̥́⌢⚈̥̥̥̥̥̀)( ⚈̥̥̥̥̥́⌢⚈̥̥̥̥̥̀)( ⚈̥̥̥̥̥́⌢⚈̥̥̥̥̥̀)( ⚈̥̥̥̥̥́⌢⚈̥̥̥̥̥̀)ಥ_ಥಥ_ಥಥ_ಥ(○｀д´)ﾉｼSTOP!q(❂‿❂)p
Rumus :
- [tex]Un = a \times {r}^{n - 1} [/tex]
Diketahui :
- a = 1
- r = 4 ÷ 1 = 4
Jawaban :
a)
[tex]Un = 1 \times {4}^{n - 1} \\ = \frac{ {4}^{n} }{{4}^{1} } \: \: \: \\ = \frac{ {4}^{n} }{4} \: \: \: [/tex]
b)
[tex]U7 = \frac{ {4}^{7} }{4} \\ \: \: \: \: \: \: = {4}^{6} \\ \: \: \: \: \: \: \: \: \: \: \: \: = 4.096[/tex]
c)
[tex]Un = \frac{ {4}^{n} }{4} \\ 16.384 = \frac{ {4}^{n} }{4} \\ 65.536 = {4}^{n} \\ log(65.536) = log {(4)}^{n} \\ log(65.536) =n \times log(4) \\ \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: n = \frac{log(65.536)}{ log(4) } \\ n = 8[/tex]
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