Question:১১. প্রমাণ কর: `(4^n - 1)/(2^n - 1) = 2^n + 1` 

Answer সমাধান: বামপক্ষ `= (4^n - 1)/(2^n - 1)` `= ((2^2)^n - 1)/(2^n - 1)` `= ((2^n)^2 - 1)/(2^n - 1)` `= ((2^n + 1)(2^n - 1))/((2^n - 1))` [ `:. a^2 - b^2 = (a + b)(a - b)` ] `= 2^n + 1` = ডানপক্ষ `:. (4^n - 1)/(2^n - 1) = 2^n + 1` (প্রমাণিত) 

+ Report
Total Preview: 2712
১১. proman karo: `(4^n - 1)/(2^n - 1) = 2^n + 1`
Copyright © 2024. Powered by Intellect Software Ltd