Provide an appropriate response.We say that a function f(x, y, z) approaches the limit L as (x, y, z) approaches (x0, y0, z0) and write  f(x, y, z) = Lif for every number ? > 0, there exists a corresponding number ? > 0 such that for all  in the domain of f,  Show that the  requirement in this definition is equivalent to 

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What will be an ideal response?


The sphere centered at (x0, y0, z0) of radius ? circumscribes the cube centered at  and with sides  Therefore,   and  imply  Likewise, the cube centered at  with sides 2? circumscribes the sphere with radius ?. Thus,  implies   and  The requirements are equivalent.

Mathematics

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Determine whether the line integral  is positive, negative or zero.

A. positive B. negative C. zero

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A. 300 B. -1000 C. 30 D. 1000

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Multiply mentally.700 ? 400

A. 280,000 B. 279,600 C. 280,400 D. 1100

Mathematics

Solve the problem.A sail on a sailboat is supported by a mast and a boom. The length and direction of the mast and boom can be described by the vectors m = i - 4j + 5k and b = -2i + 3j + k, respectively, where the components are in meters. Find the angle (to the nearest tenth of a degree) between the mast and boom.

Fill in the blank(s) with the appropriate word(s).

Mathematics