Calculate the area between the curves y = x and y = x^2 from x = 0 to x = 1.

Practice Questions

Q1
Calculate the area between the curves y = x and y = x^2 from x = 0 to x = 1.
  1. 0.25
  2. 0.5
  3. 0.75
  4. 1

Questions & Step-by-Step Solutions

Calculate the area between the curves y = x and y = x^2 from x = 0 to x = 1.
Correct Answer: 0.1667
  • Step 1: Identify the curves. We have two curves: y = x (a straight line) and y = x^2 (a parabola).
  • Step 2: Determine the points of intersection. Set x = x^2 to find where the curves meet. This gives us x(x - 1) = 0, so the points of intersection are at x = 0 and x = 1.
  • Step 3: Set up the integral. The area between the curves from x = 0 to x = 1 is found by integrating the difference of the two functions: (x - x^2).
  • Step 4: Write the integral. We need to calculate the integral from 0 to 1 of (x - x^2) dx.
  • Step 5: Calculate the integral. The integral of (x - x^2) is (x^2/2 - x^3/3).
  • Step 6: Evaluate the integral from 0 to 1. Substitute 1 into the expression: (1^2/2 - 1^3/3) = (1/2 - 1/3).
  • Step 7: Simplify the result. To subtract 1/3 from 1/2, find a common denominator (which is 6): (3/6 - 2/6) = 1/6.
  • Step 8: State the final area. The area between the curves from x = 0 to x = 1 is 1/6.
  • Area between curves – Calculating the area between two curves involves finding the integral of the difference between the two functions over a specified interval.
  • Definite integrals – Understanding how to evaluate definite integrals and apply the Fundamental Theorem of Calculus.
  • Function intersection – Identifying the points where the two curves intersect to determine the limits of integration.
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