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School math 1

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Muhammad NoorKholid, S. Pd

School math 1

www.khaleedismyname.wordpress.com

Buku-buku SMP

- Sifatdanoperasibilangan
- BarisandanDeret
- Pers Linear SatuVariabel
- Himpunan (Diagram Venn)
- Relasi, FungsidanGarisLurus
- SPLDV
- Hub garisdansudut
- KonsepSegitigadansegiempat
- Lingkaran
- BangunRuangsisidatardanLengkung
- Kesebangunan
- Teoridasarpeluang

*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}

- Sukuke-n
Un = a.rn-1

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

- DeretGeometri
- Sn= , untuk r>1
- Sn = , untuk r<1

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,…