Definite Integration Question 324

Question: The area bounded by the curve $ y={{(x+1)}^{2}},y={{(x-1)}^{2}} $ and the line $ y=\frac{1}{4} $ is

[IIT Screening 2005]

Options:

A) 1/6

B) 2/3

C) 1/4

D) 1/3

Show Answer

Answer:

Correct Answer: D

Solution:

Required area $ . =2| \int _{1/4}^{1}{(\sqrt{y}-1)\ dy} . | $ ,(From the symmetry)

On solving, we get required area $ =\frac{1}{3} $ sq. unit.