[填空题]
The values of the functions f and i.1ep p l7n7g 8lilhw+g and their derivatives for x=xgr)lj+;xt:;tw wk6 (v lz a*z3 and x=7 are sho(x)lwkz* z6tw;x v:lt+rg; jawn in the following table.
Let h(x)=f(x) g(x) .
1. Find h(3) .
2. Find the equation of the normal to h when x=7 .
