Integrals in Two and Three Dimensions-Multivariable Calculus

Hi, I am Suman Mathews, math educator.  I can help you learn how to integrate over a regionby simple curve sketching, how to change the order of integration and more in this course. I can help you overcome your doubts over this topic.

If you want to learn more about integrationin Multivariable Calculus, then join this course. If not, then you can benefit from the preview. My students have always found my teaching interesting.

Here, you will learn how to integrate double and triple integrals, Basic techniques of evaluating definite double and triple integrals are taught.  You need to remember basic curves such as circle, parabola, ellipse, straight lines.

You will then proceed to evaluating double integrals over a specified region. Some of the regions explained include the first quadrant of an ellipse, a triangle bounded by the lines y = 0, y = x,  y+x=2 . Given two curves, you need to note that is important to first find the point of intersection of the two curves.

Next , you will learn how to change the order of integration. How to change the limits when dx dy changes to dy dx and vice versa. How to change the limits for unbounded regions is also shown. One of the examples include changing the order of integration when the region is enclosed between a parabola and a straight line. Another example is changing the order of integration of a semicircle.

The session concludes with an assignment. You will learn how to evaluate the integral of an odd function within the limits -a to a. Integrating over a region bounded by the x axis, the ordinate x = 2a and the parabola x^2=4ay is also shown.

Bonus:You are introduced to polar coordinates and how to integrate using these. It is exciting to note how the limits change and how to calculate them.  Note that polar coordinates are extremely important in Mathematics.

Learn about Vector fields and Line Integrals and how to evaluate line integrals over a curve. Also learn how to evaluate line integrals of parametric functions.

Tackle Green’s Theorem-Problems and Solutions.

Don’t be afraid to take the first step to start learning!

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