Chapter 12: Q. Thinking back 1 (page 963)
Chain rule: If is a function of and is a function of , how is the chain rule used to find the rate of change of with respect to ?
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Chapter 12: Q. Thinking back 1 (page 963)
Chain rule: If is a function of and is a function of , how is the chain rule used to find the rate of change of with respect to ?
q
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In Exercises , use the partial derivatives of and the point specified to
find the equation of the line tangent to the surface defined by the function in the direction,
find the equation of the line tangent to the surface defined by the function in the direction, and
find the equation of the plane containing the lines you found in parts and .
In Exercises , find the directional derivative of the given function at the specified point and in the direction of the given unit vector .
at
Use Theorem 12.32 to find the indicated derivatives in Exercises 21–26. Express your answers as functions of a single variable.
Describe the meanings of each of the following mathematical expressions :
Fill in the blanks to complete the limit rules. You may assume that andexists and that k is a scalar.
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