Ncert maths book class 7 chapter 3 exercise 3.1 July 8, 2019 16 32 64 128 Matematika 3 das 73 Chiziqli funksiya 7 sinf algebra javoblari Chiziqli funksiya 7 sinf 7 sinf algebra natural ko'rsatkichli darajaning xossalari Matematika 3 dasaran das 73
