What are the non-permissble vaules for

4x^2y^3 / 16x^3y

The non-permissible values for an expression occur when the denominator equals zero because division by zero is undefined.

To find the non-permissible values for the expression 4x^2y^3 / 16x^3y, we set the denominator equal to zero and solve for x and y:

16x^3y = 0

Since 16 is not equal to zero, x^3 is not equal to zero. Therefore, there are no non-permissible values for x.

However, y can be equal to zero because multiplying by 0 in the numerator does not result in an undefined expression. Thus, the non-permissible value for y is 0.