U1=7Beda=3U10=U1+(10-1) x bU10=7+ 9 x 3U10=7+ 27U10= 34S10=jumlah dari U1 sampai U10S10=(U1+U10)x10/2S10=(7+34)x5S10=41 x 5S10= 205
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U1=7
Beda=3
U10=U1+(10-1) x b
U10=7+ 9 x 3
U10=7+ 27
U10= 34
S10=jumlah dari U1 sampai U10
S10=(U1+U10)x10/2
S10=(7+34)x5
S10=41 x 5
S10= 205