if `sqrt(3^n)=81` then `n=`

If sqrt(2^(n))=1024, then 3^(2((n)/(4)-4))=3(b)9 (c) 27(d)81

For set A if n(A^4)=81 then n(A)=………

If\ \ sqrt(2^n)=1024 ,\ \ then 3^(2(n/4-4))= (a)3 (b) 9 (c) 27 (d) 81

The mean of first n odd natural numbers is (n^2)/(81) , then n= (a) 9 (b) 81 (c) 27 (d) 18

The mean of first n odd natural numbers is (n^2)/(81) , then n= (a) 9 (b) 81 (c) 27 (d) 18

If (sqrt(3))^(5) xx 81 = 3^(n) xx 3sqrt(3) then the value of n is

If N = antilog_7 (log_3 (antilog_sqrt3 (log_3 81))), then log_3 N lies between two successive integers a and b. Find (a + b).