[填空题]
The values of the functions f and g and their derivatz )okigbm -(l9ives for x=2,rr (y-y.9,wqmog*o8 xu m.ekbx=3 and x=6 are shown in the following t.yq9uo-mm *.gbk rwe (,x8oryable.
1. Evaluate .
2. Let . Find 3. Let h(x)=f(g(x)) . Find the equation of the tangent to h at x=6 .