Question: In the following, the dot notation is used to indicate the time derivative of a function, i.e. f = 1. Consider the following multi-variable

In the following, the dot notation is used to indicate the time derivative of a function, i.e. f = 1. Consider the following multi-variable function, f(x, x, t) = 20xx + xt + 5x Calculate the following: a. af/at b. af/ax c. af/ax d d. (34) dt at

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