question below:

ow aw ow ow For the functions w = xy + yz + xz, x = 3u + 2v, y = 3u -2v, and z = uv, express and - and at the point (u,v) = av using the chain rule and by expressing w directly in terms of u and v before differentiating. Then evaluate du av 20 ). ow ow Express au and -as functions of u and v. ow du = 1 aw av aw aw Evaluate and - at - 2.0) aw (- 20) - (Type an integer or a simplified fraction.) ow ov (-20) (Type an integer or a simplified fraction.)