Question 749970
If {{{x = 4}}} and {{{y = 1/9}}} evaluate the expression:


a) {{{96(x^2y^(-1/2))^-2 ((x^-3) y)^(-1/2)}}}


{{{96(x^2(1/sqrt(y)))^-2 ((1/x^3) y)^(-1/2)}}}


{{{96(x^2/sqrt(y))^-2 (y/x^3)^(-1/2)}}}


{{{96(1/(x^2/sqrt(y))^2)(1/sqrt((y/x^3)))}}}


{{{(96/(x^4/(sqrt(y))^2))(1/(sqrt(y)/sqrt(x^3))))}}}


{{{(96/(x^4/y))(sqrt(x^3)/sqrt(y)))}}}


{{{(96/(x^4/y))(x*sqrt(x)/sqrt(y)))}}}.....now plug in {{{x = 4}}} and {{{y = 1/9}}}


{{{(96/(4^4/(1/9)))(4*sqrt(4)/sqrt(1/9)))}}}


{{{(96/(256/(1/9)))((4*2)/(sqrt(1)/sqrt(9))))}}}


{{{(96/(256*9))(8/(1/3))}}}


{{{(32/(256*3))((8*3)/1)}}}


{{{32(8*3)/(256*3)}}}


{{{cross(32)(8*cross(3))/(cross(256)8*cross(3))}}}


{{{8/8}}}


{{{1}}}