Given Definite Integral can be written as:

Let us assume x+2 = y

Then, x = y-2 ……(2)

Differentiating on both side w.r.t x we get,

⇒ d(x+2) = d(y)

⇒ dx = dy ……(3)

Upper limit for the Definite Integral:

⇒ x = 2 ⇒ y = 2+2

⇒ y = 4…… (4)

Lower limit for the Definite Integral:

⇒ x = 0 ⇒ y = 0+2

⇒ y = 2…… (5)

Substituting (2),(3),(4),(5) in the eq(1) we get,

We know that:

We know that:

[here f’(x) is derivative of f(x))