Calculate the surface integral where S is the portion of the plane lying in the first octant (x ≥ 0, y ≥ 0, z ≥ 0). f (x + y + 2)ds, S x + 2y + 4z = 4

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A: The explanation of why is it important to check the solution of radical solutions:

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Q: 3. What is the quotient and what is

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A: