Use the Chain Rule to find the indicated partial derivatives.

 

When, s=4, t=5, u=3

Solve the differential equation with the given initial condition (s).

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Find the area enclosed by the given ellipse.

Differentiate each function with respect to x.

Approximate the change in the volume of a sphere when its radius changes from r=5ft to r=5. 1ft  any shelp with that?