If `int f(x)dx = F(x), f(x)` is a continuous function,then `int (f(x))/(F(x))dx` equals

int (f'(x))/(f(x))dx is equal to-

int{f(x)g'(x)-f'g(x)}dx equals

Let f:R rarr[0,oo) be a differentiable function so that f'(x) is continuous function then int((f(x)-f'(x))e^(x))/((e^(x)+f(x))^(2))dx is equal to

If int f(x)dx=f(x), then int{f(x)}^(2)dx is equal to

int e^x(f(x)+f'(x))dx is equal to :

int[f(x)+x.f'(x)]dx=

int (f'(x))/( f(x) log(f(x)))dx is equal to

int_(-1)^(1) f(x) dx = K and f is an even function, then int_(-1)^(1) f(x) dx = _____