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Question

asked 2021-05-19

Find the directional derivative of f at the given point in the direction indicated by the angle \(\theta. f(x,y)=e^x\cos y,(0,0),\theta=\frac{\pi}{4}\)

asked 2021-05-29

Find the directional derivative of f at the given point in the direction indicated by the angle theta. \(f(x,y)=ye^{-x}, (0,4), \theta=\frac{2\pi}{3}\)

asked 2021-05-22

Find the 3rd derivative of the function y=f(x) given by the equation \(\displaystyle{y}^{{{2}}}={2}{x}\).

asked 2021-05-09

Find all first partial derivatives of the following function.

\(\displaystyle{f{{\left({x},{y}\right)}}}={y}{\cos{{\left({x}^{{{2}}}+{y}^{{{2}}}\right)}}}\)

\(\displaystyle{f{{\left({x},{y}\right)}}}={y}{\cos{{\left({x}^{{{2}}}+{y}^{{{2}}}\right)}}}\)