Diketahui deret geometri 4+16+64 tetukanlah suku ke 5

By Admin ReiPosted on December 3, 2022

Diketahui deret geometri 4+16+64 tetukanlah suku ke 5

Jawab:

$a = 4\r = 4\n =5\\Un = ar^{n-1} \\U5 = 4.4^{5-1} =16^4 =65536$

Jawaban:

Un = a(r^n-1) = 4(4^4) = 4×256 = 1024