Hitunglah n jika diketahui 1+2+4+8+…+2=127

By Admin ReiPosted on October 29, 2022

Hitunglah n jika diketahui 1+2+4+8+…+2=127

A.( $r^{n}$ ) : (r-1) = 127
1. ( $2^{n}$ -1 ) : (2-1) = 127
$2^{n}$ -1 :1 = 127
$2^{n}$ = 127 +1
$2^{n}$ =128
$2^{n}$ = $2^{7}$
n = 7

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