All Flashcards
Steps to find the volume of a solid with square cross-sections given two bounding curves.
- Find the intersection points of the curves (bounds). 2. Determine the side length . 3. Square the side length: . 4. Integrate: .
Steps to find the volume of a solid with rectangular cross-sections perpendicular to the y-axis.
- Express bounding curves as functions of y. 2. Find the intersection points (bounds). 3. Determine width and height as functions of y. 4. Find area: . 5. Integrate: .
How to find the volume of a solid with square cross sections if given and ?
- Find bounds: . 2. . 3. . 4. .
How to set up the integral for the volume of a solid with rectangular cross sections of height 3, perpendicular to the x-axis, bounded by and ?
- Find bounds: . 2. . 3. . 4. .
How to find the volume if the base is bounded by , , and the cross sections are squares perpendicular to the x-axis?
- Find bounds: . 2. . 3. . 4. .
How to find the volume if the base is bounded by , and the cross sections are rectangles with height perpendicular to the y-axis?
- Find bounds: . 2. . 3. . 4. .
How do you determine the limits of integration when the region is bounded by and ?
Set and solve for to find the intersection points, which are the limits of integration.
What is the general strategy for solving volume problems with known cross-sections?
- Visualize the solid. 2. Determine the shape and area of the cross-section. 3. Find the limits of integration. 4. Set up and evaluate the integral.
If the cross-sections are perpendicular to the y-axis, how do you express the bounding curves?
Express the curves as functions of y, i.e., and .
How do you handle a problem where the height of the rectangular cross-section is given as a function of x?
Include the height function in the area function and integrate with respect to x.
What are the differences between setting up a volume integral with cross-sections perpendicular to the x-axis vs. the y-axis?
x-axis: Integrate with respect to x, functions in terms of x. y-axis: Integrate with respect to y, functions in terms of y.
What are the differences between finding the volume with square vs. rectangular cross-sections?
Square: Need to find the side length 's'. Rectangular: Need to find both width 'w' and height 'h'.
Compare finding the area between two curves and finding the volume with known cross-sections.
Area: Integrate the difference between two functions. Volume: Integrate the area of a cross-section.
What are the differences between disk/washer method and volume with known cross sections?
Disk/Washer: Revolution around an axis, circular cross-sections. Cross Sections: Various shapes, no revolution required.
Compare finding the volume when given a single bounding curve versus two bounding curves.
Single Curve: The axis often acts as the second boundary. Two Curves: Need to find the difference between the functions.
What are the differences between setting up the volume integral when the cross sections are perpendicular to the x-axis vs y-axis?
x-axis: Integrate with respect to x, functions in terms of x. y-axis: Integrate with respect to y, functions in terms of y.
Compare finding the volume with square cross sections and rectangular cross sections.
Square: Need to find the side length 's' and use . Rectangular: Need to find both width 'w' and height 'h' and use .
Compare finding the area between two curves and finding the volume with known cross sections.
Area: Integrate the difference between two functions, resulting in a two-dimensional area. Volume: Integrate the area of a cross-section, resulting in a three-dimensional volume.
What is the key difference between problems where the cross-sections are perpendicular to the x-axis versus the y-axis?
x-axis: Integrate with respect to x, functions in terms of x. y-axis: Integrate with respect to y, functions in terms of y.
Compare the complexity of finding the volume with square cross sections versus rectangular cross sections.
Square: Involves finding one dimension (side length) and squaring it. Rectangular: Involves finding two dimensions (width and height).
Volume of a solid with known cross-sections.
Volume of a solid with square cross-sections.
Volume of a solid with rectangular cross-sections.
Area of a square.
Area of a rectangle.
How do you find the side length 's' of a square cross section when given two bounding curves f(x) and g(x), where f(x) is above g(x)?
How do you find the width 'w' of a rectangular cross section perpendicular to the y-axis when given two bounding curves f(y) and g(y), where f(y) is to the right of g(y)?
How to find the intersection points of two curves, and ?
Set and solve for .
If integrating with respect to 'y', what does the volume formula become for general cross sections?
How do you express as a function of y?