[填空题]
The values of the fun2+f5lptm -xmpf:jt k .ct97 wfmc,mzk2g vo 4z p5qbq06b9zb oq8ions f and g and their derivatives for x=3 and x=7 are shown in the following tabqoz4pwmzo2,qvfg57bz8 b0m b6 k q 99cle.
Let h(x)=f(x) g(x) .
1. Find h(3) .
2. Find the equation of the normal to h when x=7 .
