`f(x)= x^3`, find `(f(x+h)-f(x))/h`

If f(x)= x^2 , then (f(x+h)-f(x))/(h) =

If f(x)=x^2-5x+7, find f(2), f(-2), f(x+h), f(x^2+2) and (f(x+h)-f(x))/(h).

(1) If f(x) = sqrt(x) , prove that : (f(x + h) - f(x))/(h) = (1)/(sqrt(x + h) + sqrtx) . (2) If f(x) = x^(2) , find : (f(1.1) - f(1))/(1.1 - 1) .

If f(x)=2x^2-3x+5, find f(a+h) and (f(a+h)-f(a))/(h)

Given f(x) = 3x - 9 , find f(-1), f(3), f(x+h) and f(x^2-1).

Let f be a twice differentiable function such that f''(x)=-f(x), and f'(x)=g(x),h(x)=[f(x)]^(2)+[g(x)]^(2) Find h(10) if h(5)=11

Let f be a twice differentiable function such that f"(x) = -f(x) , and f'(x) = g(x) , h(x)=[f(x)]^2+[g(x)]^2 Find h(10), if h(5) = 11

If f (x) = sqrtx , prove that : (f(x+h)-f(x))/h=1/(sqrt(x+h)+ sqrtx) .