Consider the continuous random variable X with probability density function as:

http://i9.photobucket.com/albums/a66/lauraade/3.pnghttp://i9.photobucket.com/albums/a66/lauraade/3a.png

Find

a) the value of C

b) the moment generating function of X

c) the second moment about origin of X

I could do parts b and c, but I don't know how to find C unless it is in the f(x) function.