Question

What is the value of [2/3]-4

Answer 1

option 4

Explanation:

`a^(-m)=((1)/(a))^(m)\\\\\\((2)/(3))^(-4)=((1)/((2)/(3)))^(4)\\\\=((3)/(2))^(4)\\\\=(3^(4))/(2^(4))\\\\=(81)/(16)`