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School math 1 - PowerPoint PPT Presentation

Muhammad Noor Kholid , S. Pd. School math 1. www.khaleedismyname.wordpress.com. Buku-buku SMP. Pustaka :. Sifat dan operasi bilangan Barisan dan Deret Pers Linear Satu Variabel Himpunan (Diagram Venn) Relasi , Fungsi dan Garis Lurus SPLDV Hub garis dan sudut

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School math 1

www.khaleedismyname.wordpress.com

Buku-buku SMP

Pustaka:

• Sifatdanoperasibilangan

• BarisandanDeret

• Pers Linear SatuVariabel

• Himpunan (Diagram Venn)

• Relasi, FungsidanGarisLurus

• SPLDV

• Hub garisdansudut

• Lingkaran

• BangunRuangsisidatardanLengkung

• Kesebangunan

• Teoridasarpeluang

MATERI

*Sukuke-n

Un= a + (n-1)b

a= sukupertamaatau U1

b= (haruskonstant U2-U1= U3-U2=Un-Un-1)

*Deret/jumlahbarisan

Sn = ½.n.(a+Un)

Carirumuskedua

Sn = ½.n.{2a+(n-1)b}

Barisandanderetaritmatik

• Sukuke-n

Un = a.rn-1

r= rasiokonstant( U2/U1=U3/U2=Un/Un-1)

• DeretGeometri

• Sn= , untuk r>1

• Sn = , untuk r<1

Barisandanderetgeometri

Tigasukuberurutanmembentukbar.aritmatik: x+2, 2x+3, 5x+6. tentukannilai x.

Diketahuibarisanaritmetikberikut: 5, 8, 11, 14,…

Tentukansukuke 22.

DiketahuiBarisanarit dg U5 =21 dan U17=81. tentukansuku ke.25

Suku ke.20 daribarisanaritmetikberikutadalah: 27, 23, 19, 15,…