Definite IntegrationHard
Question
Which of the following are true ?
Options
A.
x f(sin x)dx = 
f(sin x) dx
x f(sin x)dx = f(sin x) dxB.
f(x2)dx = 2. 
f(x2)dx
f(x2)dx = 2. f(x2)dxC.
f(cos2x)dx = n. 
f(cos2x)dx
f(cos2x)dx = n. f(cos2x)dxD.
f(x + c)dx = 
f(x)dx
f(x + c)dx = f(x)dx