1. Fill in the blank: A curve C has equation g(x, y)=k, where Vg#0 on C. If a differentiable function f(x, y) attains its minimum value on C at a point P, then the vectors V(P) and Vg(P) are necessarily Select one: a. zero b. parallel c. equal d. perpendicular e. nonzerO

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Domain

In simple mathematics terms, a domain is defined as the space on which all the possible inputs for the function will lie. It can also be expressed as a set of departures for the required function.