[دلوعة غاليها]

If f(x) = x/(x2 + 6), find f ''(x

Find h'(4) given that f(4) = -5, f '(4) = -5, g(4) = 3, and g'(4) = 5.
(a) h(x) = 4f(x) - 4g(x)
h'(4) = 1

(b) h(x) = f(x)g(x)
h'(4) = 2

(c) h(x) = f(x)

g(x)
h'(4) = 3

(d) h(x) = g(x)

1 + f(x)
h'(4) = 4



Use the equation given below to find f '' (π/3).
f (x) = sec(x)
f '' (π/ 3) =



Use the equation given below to find f ' (x), and f '' (x).
f (x) = 3 ex cos (x)
f '' (x)[/COLOR][/COLOR]