Question

A. write the expression 81^-3/4 in radical notation.

B. evaluate the radical expression

Answer 1

\[\sqrt{ 81^-3/4}= ?\]
Right ?

Answer 2

We can say :
81=3^4=>81^-3=(3^4)^-3 = 3^-12 and :
\[\sqrt{3^-12 }=3^-12/2=3^-6\]
And 4=2^2
So :
\[\sqrt{2^2}=2^2/2=2\]
@sexybadass22

Answer 3

We have :
3^-6/2 =>3^-6=1/3^6 =>1/3^6/2=>1/3^6/2/1=1/3^6 * 2

Answer 4

@sexybadass22

Answer 5

81^-3/4 is not sqrt(81^-3/4)

Answer 6

@CF7 is offline, I think.

Answer 7

Yes .!
I think this user answer is right .;)