Join thousands of students who trust us to help them ace their exams!Watch the first video
Multiple Choice
Evaluate the iterated integral:
A
B
C
D
Verified step by step guidance
1
Step 1: Understand the problem. The iterated integral is given as \( \int_{0}^{2} \int_{0}^{1} (x + y)^2 \, dx \, dy \). This means we first integrate with respect to \(x\) while treating \(y\) as a constant, and then integrate the result with respect to \(y\).
Step 2: Begin with the inner integral \( \int_{0}^{1} (x + y)^2 \, dx \). Expand \((x + y)^2\) to \(x^2 + 2xy + y^2\). Since \(y\) is treated as a constant during this step, the integral becomes \( \int_{0}^{1} (x^2 + 2xy + y^2) \, dx \).
Step 3: Integrate each term in \(x^2 + 2xy + y^2\) with respect to \(x\): \( \int_{0}^{1} x^2 \, dx \), \( \int_{0}^{1} 2xy \, dx \), and \( \int_{0}^{1} y^2 \, dx \). For \(y^2\), note that it is constant with respect to \(x\), so its integral is \(y^2 \cdot x\) evaluated from 0 to 1.
Step 4: After evaluating the inner integral, you will have an expression in terms of \(y\). Proceed to the outer integral \( \int_{0}^{2} \text{(result from inner integral)} \, dy \). Integrate this expression with respect to \(y\).
Step 5: Evaluate the outer integral by integrating each term in the expression obtained from the inner integral. Substitute the limits of integration (0 to 2) into the result to complete the calculation.