[填空题]
The values of the functions f and g and theixz 7+,3* kc x/aol-zdbziays. r derivatives for x= 5sm;(oe j.kv1uex/qf 2,x=3 and x=6 are shown in the followingso/kv eeq;x15mj.u (f table.
1. Evaluate $\int_{2}^{3} g^{\prime \prime}(x) \mathrm{d} x$ .
2. Let $ k(x)=\frac{f(x)}{g(x)}$ . Find $k^{\prime}(2)$
3. Let h(x)=f(g(x)) . Find the equation of the tangent to h at x=6 .
