Penjelasan dengan langkah-langkah:
Misal :
• n = 1
3¹ - 1 = 3 - 1
= 2 ÷ 2
= 1 (habis dibagi 2)
• n = 2
3² - 1 = 9 - 1
= 8 ÷ 2
= 4 (habis dibagi 2)
• n = 3
3³ - 1 = 27 - 1
= 26 ÷ 2
= 13 (habis dibagi 2)
.
. begitu seterusnya
Jadi jumlah 3^n - 1, habis dibagi 2
Keterangan :
^ = pangkat
Semoga membantu
#backtoschool2019
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Penjelasan dengan langkah-langkah:
Misal :
• n = 1
3¹ - 1 = 3 - 1
= 2 ÷ 2
= 1 (habis dibagi 2)
• n = 2
3² - 1 = 9 - 1
= 8 ÷ 2
= 4 (habis dibagi 2)
• n = 3
3³ - 1 = 27 - 1
= 26 ÷ 2
= 13 (habis dibagi 2)
.
.
.
. begitu seterusnya
Jadi jumlah 3^n - 1, habis dibagi 2
Keterangan :
^ = pangkat
Semoga membantu
#backtoschool2019