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Multiple Choice
Which of the following integrals represents the area of the region bounded by the curves and between and ?
A
B
C
D
Verified step by step guidance
1
Step 1: Understand the problem. The goal is to find the area of the region bounded by the curves y = x^2 and y = 4 between x = 0 and x = 2. The area is calculated using definite integrals, and the correct integral depends on the relative positions of the curves.
Step 2: Analyze the curves. The curve y = x^2 is a parabola opening upwards, and y = 4 is a horizontal line. Between x = 0 and x = 2, the parabola lies below the line y = 4. Therefore, the area is determined by subtracting the lower curve (y = x^2) from the upper curve (y = 4).
Step 3: Set up the integral. The area is given by the integral of the difference between the upper curve and the lower curve over the interval [0, 2]. This results in the integral: ∫
Step 4: Compare the given options. The correct integral matches the form ∫, which is listed as 'int_0^2 (4 - x^2) dx'.
Step 5: Verify the other options. The other integrals either reverse the order of subtraction (which would result in a negative area) or use incorrect bounds (e.g., integrating from x = 0 to x = 4 instead of x = 0 to x = 2). Thus, the correct answer is 'int_0^2 (4 - x^2) dx'.