Question

यदि 2^n - 2^n-1 = 4 तो n^n का मान होगा
hint 1 , 3/2 , 2 ,27​

Answer 1

Answer:

2ⁿ - 2ⁿ-¹ = 4

=> we know that 8-4 = 4

so on comparing , we get 2ⁿ = 8 and 2ⁿ-1 = 4

=> 2ⁿ = 2³ and 2ⁿ-¹ = 2²

=> n=3 and n-1 = 2

=> n=3

nⁿ = 3³ = 27