Jawaban:
diket: a= 2, b=2
Sn= n/2 (2a + (n-1)b)
S6= 6/2 (2 × 2 + (6-1)2)
= 3(4+(5)2)
= 3(4+10)
= 3(14)
= 42
Penjelasan dengan langkah-langkah:
a= suku pertama , b= beda
cara mencari beda U2 - U1
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Jawaban:
diket: a= 2, b=2
Sn= n/2 (2a + (n-1)b)
S6= 6/2 (2 × 2 + (6-1)2)
= 3(4+(5)2)
= 3(4+10)
= 3(14)
= 42
Penjelasan dengan langkah-langkah:
a= suku pertama , b= beda
cara mencari beda U2 - U1