Agar \(a_n = 7n^{ 2 } - 4n + 74\), \(b_n = -9a_n^{ 2 } + 5a_n + 53\) bo‘lsa, \(b_{ 14 } \) ning qiymatini kiriting.
121. Sonli ketma-ketlikning n-hadini hisoblash II
Ushbu sahifaga havola:
https://itboom.uz/m121/
