COMEDK2015MathematicsArea Under Curves
The area in square units of the region bounded by y²=9 x and y=3 x is
Options
- A2
- B1 4
- C1 2
- D1
Correct answer
C. 1 2
Step-by-step solution
Intersecting points of y²=9 x and y=3 x is (0,0) and (1,3) . aligned Hequired area &= ₀¹( 9 x -3 x) d x &=3 ₀¹( x -x) d x=3 [ x^ 3 / 2 3 / 2 - x² 2 ]₀¹ &=3 ( 2 3 - 1 2 )=3 ( 1 6 )= 1 2 squnit aligned