tentukan jumlah 100 suku pertama 1+3+5+7+9+....... Question from @putriadindarahmadani

February 2023 1 7 Report

tentukan jumlah 100 suku pertama 1+3+5+7+9+...

Penjelasan dengan langkah-langkah:

U1 = 1

U2 = 3

b = 3 - 1 = 2

Un = a + ( n - 1 ) b

U100 = 1 + ( 100 - 1 ) 2

U100 = 199

Sn = n/2 ( Un + a )

Sn = 100/2 ( 199 + 1 )

Sn = 50 x 200 = 10.000

S100 = 10.000

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