Download the app

Questions  

ab(xa)(bx)dx(b>a) is equal to

Remember concepts with our Masterclasses.

80k Users
60 mins Expert Faculty Ask Questions
a
π(b−a)2/8
b
π(b+a)2/8
c
π(b−a)2
d
π(b+a)2

Ready to Test Your Skills?

Check Your Performance Today with our Free Mock Tests used by Toppers!

detailed solution

Correct option is A

Let t=x−a+x−b2=x−12(a+b)and α=b−a2 , sot that∫ab (x−a)(b−x)dx=∫-αα (t+α)(α−t)dt=2∫0α α2−t2dt=tα2−t2+α2sin−1⁡tα0α=πα22=π(b−a)28.


Similar Questions

The value of 0αdx1-cosαcosx(0<α<π/2) is


whats app icon
phone icon