chapter 25 section 4 guided reading the impact of the war answers

chapter 25 section 4 guided reading the impact of the war answers

Matematika diketahui barisan geometri 486 162 54 Tentukan suku ke-5​

diketahui barisan geometri 486 162 54 Tentukan suku ke-5​

Penjelasan dengan langkah-langkah:

486, 162, 54, …

a = 486

r = U2/U1 = 162/486 = 1/3

Suku Ke-5 :

[tex]\text{Un} \: = \: \text{a.r}^{ \text{n} - 1}[/tex]

[tex]\text{U5} \: = \: \text{486.} \frac{1}{3} ^{ \text{5} - 1}[/tex]

[tex]\text{U5} \: = \: \text{486.} \frac{1}{3} ^{ \text{4}}[/tex]

[tex]\text{U5} \: = \: \text{486.} \frac{1}{81} [/tex]

[tex]\text{U5} \: = \bold6[/tex]

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