The temperature at a point (x, y,z) is given by t(x, y,z)=200e−x2−y2/4−z2/9t(x, y,z)=200e−x2−y2/4−z2/9, where tt is measured in degrees celsius and x, y, and z in meters. there are lots of places to make silly errors in this problem; just try to keep track of what needs to be a unit vector. find the rate of change of the temperature at the point (0, -1, 2) in the direction toward the point (-3, 4, -3).