Question

please tell a and e part

Answer 1

(a) Given (3/4)^2n+ 1 = 243/1024

          (3/4)^2n+1 = (3/4)^5

          2n + 1 = 5

           n = 2.



(e) Given 5^x + 5^x-1 = 750

                5^x-1(5^1 + 1) = 750

               6 * 5^x-1 = 750

                   5^x-1 = 125

                   5^x-1 = 5^3

                   x - 1 = 3

                     x = 4.



Hope this helps! :)