Quantrex Quantrex AcademyJEE · NEET · NDA PYQs with solutions Open app
AP EAMCET201822 Apr 2018Evening ShiftMathematicsArea Under CurvesActual

O A B C is a unit square where O is the origin and B=(1,1) . The curves y^2=x and x^2=y divide the area of the square into three parts O A B O, O B O and O B C O . If a₁, a₂, a₃ are the areas (in sq units) of these parts respectively, then a₁+2 a₂+3 a₃=

Options

  1. A1
  2. B2
  3. C6
  4. D64

Correct answer

B. 2

Step-by-step solution

Now, aligned a₂ & = ₀^1 ( x -x^2 ) d x & = [ 2 3 x^ 3 / 2 - x^3 3 ]₀^1= 2 3 - 1 3 = 1 3 aligned So, a₁+a₃+ 1 3 =1 From Eqs. (ii) and (iii), a₁=a₃= 1 3 =a₂ So, a₁+2 a₂+3 a₃= 1 3 + 2 3 + 3 3 =2

Practice Area Under Curves on Quantrex Academy →

More from Area Under Curves

Find the area bounded by the curve y = |2 - x| , the x –axis, and the lines x = 0 and x = 5 2026The area enclosed by the curve y = -x^2 and the line x + y + 2 = 0 is 2026The area of the region bounded by the line y = x + 2 and the curve x = -y^2 is 2026The area of the region in the first quadrant enclosed by the x -axis, the line x = 3 ,y and the circle x^2 + y^2 = 4 is 2026The area of the region bounded by the curve y^2 = x^3 , the y -axis and the lines y = 1 and y = 8 is 2026The area enclosed by the curve x = 3 , y = 3 is 2026The area in square units of the region bounded by the curve y = 16 - x^2 and lines x = 0, x = 4 above the X-axis is 2026The area bounded by the curves y = |x| - 1 and y = -|x| + 1 is 2026 Full Area Under Curves list All AP EAMCET PYQs