What is the value of
y^-2 z^2 for y=-3 and z=-5
To find the value of y^-2 z^2 when y = -3 and z = -5, substitute these values into the expression:
y^-2 z^2 = (-3)^-2 (-5)^2
Recall that any number raised to the power of -2 means finding the reciprocal and squaring it:
(-3)^-2 = 1/(-3)^2 = 1/9
(-5)^2 = 25
Substituting these values back into the expression:
y^-2 z^2 = (1/9) (25) = 25/9
Therefore, when y = -3 and z = -5, the value of y^-2 z^2 is 25/9.