(/ + </)'(	x) =	/'(			
(/ • </)'(	x) =	/'(	» ' g{x) + /(a;)	Vi	
	x) =	/'	(a;) • g(x) - f(x)	•9'	(a;)
U(			g2(x)		
(f°9)'i	x) =	/'(	[g(x)) • g\x)		
{{C • /)'(	x)	C	• /'(*))		
c =	()		(arctan x)'		1
					1 + x2
(xay =	axa~	i	(arccot x)1		1
					1 + a;2
(sin a;)' =	cos x			=	ax • In a
(cos a;)' =	— sin a;		(lna;)'	=	1 X
1