9-sinf i-blok 1-variant 2017-2018 o’quv yili iv-chorak Ona tili

9. Geometrik progressiyada b₁ =4, q= bo'lsa, b₇ni toping.

A) B) C) D)

10. O’xshash uchburchaklarning perimetrlari 30 sm va 36 sm bo’lsa, o’xshashlik koeffitsientini toping. A) B) C) D)

11. To’g’ri burchakli uchburchakning katetlari 5 sm va 12 sm bo’lsa, to’g’ri burchakli uchburchakning gipotenuzasini toping.

12. Geometrik progressiyaning maxraji q=3, S₄ =80 b₅ =?

13. Arifmetik progressiyada d=4, S₅₀=5000 bo’lsa,a₁ni toping.

14. Geometrik progressiyada q= , S= 364 bo’lsa, b₁ni toping.

15. Sinuslar teoremasi formulasini yozing.