Consider the systems
![1625_05864b16-317e-44b8-82a8-336831e4a366.png](https://secure.tutorsglobe.com/CMSImages/1625_05864b16-317e-44b8-82a8-336831e4a366.png)
Draw the block diagrams using the series methods of blocks then use:
1. The block diagram reduction rules to obtain the transfer functions.
2. Mason's formula to show that you will get the same transfer function from the block diagrams.