We notice that if x = 1/2, then there is no maximum, the 2
given functions having the same value.
Therefore, we'll
evaluate the definite integral over 2 ranges.
If x belongs
to the interval [0,1/2], then 1/4 > x^2.
If x
belongs to the interval [1/2,1], then x^2 > 1/4.
The
definite integral of the given function is calculated over the identified
ranges.
I = Int dx/4 (0->1/2) + Int x^2dx
(1/2->1)
We'll apply Leibniz Newton formula to
determine the definite integrals:
Int dx/4 = F(1/2) -
F(0)
Int dx/4 = x/4
F(1/2) =
1/8 and F(0) = 0
F(1/2) - F(0) = 1/8
(*)
Int x^2dx = F(1) -
F(1/2)
Int x^2dx = x^3/3
F(1)
= 1/3
F(1/2) = 1/24
F(1) -
F(1/2) = 1/3 - 1/24
F(1) - F(1/2) =
(8-1)/24
F(1) - F(1/2) = 7/24
(**)
We'll add (*) and (**) to find out
I:
I = 1/8 + 7/24
I =
(3+7)/24
I = 10/24
I =
5/12
The requested definite integral of the
given function is I = 5/12.
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