(1/81)^(3/4)とは何ですか?

(1/81)^(3/4)とは何ですか?
Anonim

回答:

#(1/81)^(3/4)=色(緑)(1/27)#

説明:

から #81 = 9xx9 = 3xx3xx3xx3xx3 = 3 ^ 4#

だから #81^(1/4)=3#

#(1/81)^(3/4)#

#色(白)( "XXX")=((1/81)^(1/4))^ 3#

#色(白)( "XXX")=((1 ^(1/4))/(81 ^(1/4)))^ 3#

#色(白)( "XXX")=(1/3)^ 3#

#色(白)( "XXX")= 1 /(3 ^ 3)#

#色(白)( "XXX")= 1/27#