Table of contents

0. Functions7h 52m
1. Limits and Continuity2h 2m
2. Intro to Derivatives1h 33m
3. Techniques of Differentiation3h 18m
4. Applications of Derivatives2h 38m
5. Graphical Applications of Derivatives6h 2m
6. Derivatives of Inverse, Exponential, & Logarithmic Functions2h 37m
7. Antiderivatives & Indefinite Integrals1h 26m
8. Definite Integrals4h 44m
9. Graphical Applications of Integrals2h 27m
- Area Between Curves
  1h 18m
- Introduction to Volume & Disk Method
  1h 8m
10. Physics Applications of Integrals 3h 16m
- Kinematics
  1h 13m
- Work
  2h 3m
11. Integrals of Inverse, Exponential, & Logarithmic Functions2h 34m
12. Techniques of Integration7h 39m
13. Intro to Differential Equations2h 55m
14. Sequences & Series5h 36m
15. Power Series2h 19m
- Introduction to Power Series
  1h 9m
- Taylor Series & Taylor Polynomials
  1h 10m
16. Parametric Equations & Polar Coordinates7h 58m

8. Definite Integrals

Introduction to Definite Integrals

Calculus

8. Definite Integrals

Introduction to Definite Integrals

Previous problemNext problem

Struggling with Calculus?

Join thousands of students who trust us to help them ace their exams!Watch the first video

Multiple Choice

Consider the double integral $\int_{0}^{2} \int_{y^{2}}^{4} f (x, y) d x d y$ . Which of the following correctly expresses the integral with the order of integration reversed?

\int_{0}^{2} \int_{4}^{y^{2}} f (x, y) d x d y

\int_{0}^{4} \int_{0}^{\sqrt{x}} f (x, y) d y d x

\int_{0}^{2} \int_{0}^{y^{2}} f (x, y) d x d y

\int_{0}^{4} \int_{x}^{2} f (x, y) d y d x

Previous problemNext problem

Verified step by step guidance

Step 1: Understand the problem. The goal is to reverse the order of integration for the given double integral $ \int_0^2 \int_{y^2}^{4} f(x, y) \, dx \, dy $. This involves analyzing the region of integration and rewriting the limits accordingly.

Step 2: Visualize the region of integration. The inner integral $ \int_{y^2}^{4} $ indicates that $ x $ ranges from $ y^2 $ to $ 4 $, while the outer integral $ \int_0^2 $ shows that $ y $ ranges from $ 0 $ to $ 2 $. Plot these bounds on the $ xy $-plane to understand the region.

Step 3: Determine the new bounds for $ x $ and $ y $ when reversing the order of integration. From the visualization, $ x $ ranges from $ 0 $ to $ 4 $, and for a fixed $ x $, $ y $ ranges from $ 0 $ to $ \sqrt{x} $. This is because $ y^2 = x $ implies $ y = \sqrt{x} $.

Step 4: Rewrite the integral with the reversed order of integration. The new integral becomes $ \int_0^4 \int_0^{\sqrt{x}} f(x, y) \, dy \, dx $, where $ x $ is integrated first and $ y $ second.

Step 5: Verify the correctness of the new integral. Ensure that the new bounds correctly describe the same region of integration as the original integral. The region described by $ x $ from $ 0 $ to $ 4 $ and $ y $ from $ 0 $ to $ \sqrt{x} $ matches the original region, confirming the reversal is accurate.