All Flashcards
How do you find the intersection points of two polar curves?
Set the two polar equations equal to each other, , and solve for . These values are the angles at the intersection points.
Outline the steps to find the area between and in the second quadrant.
- Identify and . 2. Determine bounds: to . 3. Set up the integral: . 4. Evaluate the integral.
How do you determine which polar function is the 'inner' function?
Imagine yourself at the origin. The function you see first is the inner function.
Explain the concept of 'inner' and 'outer' radius when finding the area between two polar curves.
The 'outer' radius, , is the curve farther from the origin, while the 'inner' radius, , is the curve closer to the origin. The area is calculated by integrating the difference of their squares.
How do you determine the limits of integration when finding the area between two polar curves?
The limits of integration, and , are the angles at which the two polar curves intersect. Solve to find these intersection points.
Why do we use to find area in polar coordinates?
It represents the area of an infinitesimally small sector of a circle with radius and angle . Integrating this gives the total area.
What is the formula for the area of a region bounded by a single polar curve?
What is the formula for the area of a region bounded by two polar curves?
, where is the outer radius and is the inner radius.
How do you find the area between two polar curves?
, where is the outer curve and is the inner curve.