y = k		   y' = 0
y = x		   y' = 1
y = k x 	   y' = k
y = k u		   y' = k u'
y = u +- v	   y' = u' +- v'
y = u v        	   y' = u' v + u v'
y = u/v		   y' = (u' v - u v') / v^2
y = raiz( x )	   y' = 1 / ( 2 raiz( x ) )
y = raiz( u )      y' = u'/ ( 2 raiz( u ) )
y = raiz( n , x )  y' = 1 / ( n raiz( n , x^(n-1) ) )
y = raiz( n , u )  y' = u'/ ( n raiz( n , u^(n-1) ) )
y = x^m            y' = m x^(m-1)
y = u^m            y' = m u^(m-1) u'
y = e^x            y' = e^x
y = e^u            y' = e^u u'
y = k^x            y' = k^x ln(k)
y = k^u            y' = k^u ln(k) u'
y = ln(x)          y' = 1/x
y = ln(u)          y' = u'/u
y = log_a(x)       y' = log_a(e) 1/x
y = log_a(u)       y' = log_a(e) u'/u
y = sen(x)         y' =  cos(x)
y = cos(x)         y' = -sen(x)
y = sen(u)         y' =  cos(u) u'
y = cos(u)         y' = -sen(u) u'
y = tag(x)         y' =   1/cos^2(x)
y = tag(u)         y' =  u'/cos^2(u)
y = cotag(x)       y' =  -1/sen^2(x)
y = cotag(u)       y' = -u'/sen^2(u)
y = arc sen(x)     y' =   1/raiz(1-x^2)
y = arc sen(u)     y' =  u'/raiz(1-u^2)
y = arc cos(x)     y' =  -1/raiz(1-x^2)
y = arc cos(u)     y' = -u'/raiz(1-u^2)
y = arc tag(x)     y' =   1/(1+x^2)
y = arc tag(u)     y' =  u'/(1+u^2)
y = arc cotag(x)   y' =  -1/(1+x^2)
y = arc cotag(u)   y' = -u'/(1+u^2)

Regla de la cadena:
y = f(u)           y' = dy / du
u = g(x)	   u' = du / dx
dy / dx = y' u'