1. Evaluate limit: lim h-0 1(3+h)^2+5(3+h)-(1*3^2+5*3) / h

limit=?

2. limit: lim h-0 (8+h)^2-64 / h represents the derivative of some function f (x) at some a.

Find f=? and a=?

3. If someone now told you that the derivative (slope of the tangent line to the graph) of f(x) at x=-1 was -1/n^2 for some interger n.

What is n=?

4. Let f and g be functions that satisfy f '(-3)= 12 and g '(-3)= 3. find h '(-3) for function h(x)= -3g(x)-11f(x)-10x.

What is h' (-3)=?

5. f(x)=tanx

find:

f ''(x)= ?

f '''(x)=?

f ''''(x)=?

thank you very much. Have a great day.

**Edit:** Only 2. and 3. require help now.