Question: If z = x3 - 5y2 + 4y + 1, find the following. (a) zxx (b) zxy (c) zyx (d) zyy

If z = x3 - 5y2 + 4y + 1, find the following.
(a) zxx
(b) zxy
(c) zyx
(d) zyy

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