Simplify:
(i) (
* 
) + (
* 
) – (
* 
)
(ii) 
(iii) 
(iv) 
(i) 
+ 
- 
= 
= 
= 
= 
(ii) 
+ 
+ 
= 
= 
= 
= 
(iii) 
+ 
+ 
= 
+ 
+ 
= 
= 
(iv) 
- 
+ 
= 
- 1 + 
= 
= 
5
Simplify:
(i) ( * ) + ( * ) – ( * )
(ii)
(iii)
(iv)
(i) + -
=
=
=
=
(ii) + +
=
=
=
=
(iii) + +
= + +
=
=
(iv) - +
= - 1 +
=
=