Is it possible to use Trig (i.e. Sine, Cosine, etc) with the GT60 MCU. Also how do you incoroprate MATH.h into your project?

I am getting the following error

L1822: Symbol sin in file is undefined

L1822: Symbol cos in file is undefined

with

#include at the top of my program

also is the return of sin or cos at double or a float? because both are availalbe according to math.h

I am getting the following error

L1822: Symbol sin in file is undefined

L1822: Symbol cos in file is undefined

with

#include at the top of my program

also is the return of sin or cos at double or a float? because both are availalbe according to math.h