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**Lisasmith111** · 12-04-2010

Hello folks,

Although 0! = 1 can anyone explain why this is the case. Hopefully, in a simple way so that I can understand why this is the case.

Also why does anything to the power of zero = 1 eg 10^0 = 1 and 9^0 = 1.

Finally, we all act as though we understand infinity even though none of us really know what it is. Can anyone explain?

Kind regards

Lisa Smith

12-04-2010	#1
Lisasmith111 Join Date: Nov 2010 Posts: 36	Factorial zero; Power of zero; Infinity Hello folks, Although 0! = 1 can anyone explain why this is the case. Hopefully, in a simple way so that I can understand why this is the case. Also why does anything to the power of zero = 1 eg 10^0 = 1 and 9^0 = 1. Finally, we all act as though we understand infinity even though none of us really know what it is. Can anyone explain? Kind regards Lisa Smith