Construct 8-input NAND gate? Digital logic

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Fear58

Joined Jan 11, 2010
9
Hey all,

I have a digital design homework problem and I'm really foggy on how to construct a certain gate function. The problem is:

(a) Design the 8-input NAND gate using 2-input NAND gates and NOT gates.
(b) Design the 8-input NAND gate using 2-input NAND gates, 2-input NOr gates, and NOT gates if needed?

I forgot how to construct these buggers. Can anyone point me in the right direction?
 
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