(All Steps) Find the directional derivative of the function at P in the direction of Q. f(x, y)= cos (x+y), P(0, π), Q((π)/(2),
Question: Find the directional derivative of the function at P in the direction of Q.
\(f(x, y)=\cos (x+y), \quad P(0, \pi), Q\left(\frac{\pi}{2}, 0\right)\)
Deliverable: Word Document 
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![[Solution] Describe the domain and range of](/images/solutions/MC-solution-library-54717.jpg "[Solution] Describe the domain and range of the function. f(x,")
[Solution] Describe the domain and range of the function. f(x,
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