n^(n/2)=8 is true when n=8 in the same way what is the value of n if n^(n/2) =20?	Choices.
A) 8 B) 14 C) 10 D) 20 E) 40

Rationale: n ^ ( n / 2 ) = 20 apply log n / 2 logn = log 20 nlogn = 2 log 20 = log 20 ^ 2 = log 400 logn = log 400 now apply antilog n = 400 / n now n = 20 . answer : d
Answer: D