If `f(x) = (x^2 + 9)/(sqrt(x-3))` find `f(4) + f(5)`

If f(x)=(x-4)/(2sqrt(x)) , then find f'(1)

If f(x) = (x^(2)-9)/(x-3) , find it Lim_(x to 3) f(x) exists .

If f(x) =(x-4)/(2sqrt(x)) , then f^(')(1) is equal to

Find the domain of each of the following real valued functions of real variable: f(x)=sqrt(x-2) (ii) f(x)=1/(sqrt(x^2-1)) (iii) f(x)=sqrt(9-x^2) (iv) f(x)=sqrt((x-2)/(3-x))

If f(x)=3sqrt((1+x^(2))^(4)) , find f'(1).

If f(x) = (3)/(x-2) and g(x) = sqrt(x + 1) , find the domain of f @ g .

If f(x) = (x - 1)(x - 2)(x - 3)(x - 4)(x - 5) , then the value of f' (5) is equal to

f(x)=sqrt(9-x^(2)) . find range of f(x).

Given the function f(x) = x^(2) + 2x + 5 . Find f(-1), f(2), f(5).

If f(x)=3x^4-5x^2+9, find f(x-1) .