Jawabanmu

2014-05-06T07:34:01+07:00
2014-05-06T07:34:09+07:00
81 pangkat ¾ atau
∜81³ = ∜(3⁴)³ = ∜3¹²
= 3^(12/4) = 3³
= 27

hasilnya :
b.27