Barrons AP Calculus

expression

See Figure  N3–1b.

Figure  N3–1b

The second  derivative, denoted by  f ′′(x) or      or  y′′,    is  the (first) derivative  of

f ′(x).
Also, f ′′(a) is the second derivative of f (x) at x = a.

B. FORMULAS

The formulas in this section for finding derivatives are so important that
familiarity with them is essential. If a and n are constants and u and v are
differentiable functions of x, then:

(1)