Deret geometri
[tex]u6 = a \times {r}^{5} \\ 96 = 3 \times {r}^{5} \\ \frac{96}{3} = {r}^{5} \\ {r}^{5} = 32 \\ r = \sqrt[5]{32} \\ r = 2 \\ \\ sn = \frac{a( {r}^{n} - 1) }{r - 1} \\ \\ s6 = \frac{3( {2}^{6} - 1) }{2 - 1} \\ \\ s6 = \frac{3(64 - 1)}{1} \\ \\ s6 = 3(63) \\ \\ s6 = 189 \: cm \: (B)[/tex]
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Deret geometri
[tex]u6 = a \times {r}^{5} \\ 96 = 3 \times {r}^{5} \\ \frac{96}{3} = {r}^{5} \\ {r}^{5} = 32 \\ r = \sqrt[5]{32} \\ r = 2 \\ \\ sn = \frac{a( {r}^{n} - 1) }{r - 1} \\ \\ s6 = \frac{3( {2}^{6} - 1) }{2 - 1} \\ \\ s6 = \frac{3(64 - 1)}{1} \\ \\ s6 = 3(63) \\ \\ s6 = 189 \: cm \: (B)[/tex]