∫12h"(u) du = 3
The Fundamental Theorem of Calculus: Suppose f is continuous on [a, b], then
∫abfxdx=Fb-F(a), where F is antiderivative of f, that is F'=f.
Applying Fundamental Theorem of Calculus,
From the given data
Therefore,∫12h"(u) du = 3