Which expression is equivalent to (1/4ab)^-2? Assume a is not equal to 0,b is not equal to 0
a. -1/16a^2b^2
b. a^2b^2/4
c. -16a^2b^2
d. 16a^2b^2

Respuesta :

The answer would be D. 

Answer:

d. [tex]16a^2b^2[/tex]

Step-by-step explanation:

Given expression,

[tex](\frac{1}{4ab})^{-2}[/tex]

[tex]=((4ab)^{-1})^{-2}[/tex]     [tex]\because \frac{1}{a^m}=a^{-m}[/tex]

[tex]=(4ab)^{-1\times -2}[/tex]    [tex]\because (a^m)^n=a^{mn}[/tex]

[tex]=(4ab)^2[/tex]

[tex]=(4)^2(a)^2(b)^2[/tex]        [tex]\because (ab)^m=a^mb^m[/tex]

[tex]=16a^2b^2[/tex]

Hence, option d is correct.