MHT CET202415 May 2024Evening ShiftMathematicsArea Under CurvesActual
The area enclosed between the parabola y^2=4 x and the line y=2 x-4 is
Options
- A17 3 sq. units
- B15 sq. units
- C19 3 sq. units
- D9 sq. units
Correct answer
D. 9 sq. units
Step-by-step solution
Putting x= y^2 4 in y=2 x-4 , we get aligned & y=2 ( y^2 4 )-4 & y^2-2 y-8=0 & (y-4)(y+2)=0 & y=4,-2 aligned aligned & Required area = _ -2 ^4 ( y+4 2 - y^2 4 ) d y & = 1 2 [ y^2 2 +4 y ]_ -2 ^4- 1 4 [ y^3 3 ]_ -2 ^4 & = 1 2 [8+16-(2-8)]- 1 12 [64-(-8)] & =15-6 & =9 sq. units aligned