I need help with my functions

I need help with my functions

1.Find f.

f (t) = 3et + 6 sin t,f(0) = 0,f(π) = 0
2.Find f.

f (x) = x−2,x > 0,f(1) = 0,f(6) = 0


3.Find a function f such that

f (x) = 3x3

and the line

3x + y = 0

is tangent to the graph of
f.

4.Use the method of cylindrical shells to find the volume V generated by rotating the region bounded by the given curves about the y-axis.

y = 7ex2,y = 0,x = 0,x = 1

5.Use the method of cylindrical shells to find the volume
V generated by rotating the region bounded by the given curves about the
y-axis.

y = 17x2,y = 0,x = 1