If I have sin( )/cos( )

I know that I cannot cancel the( ) on the top and bottom, butin wordswhat is the reason for this? because sin/cos is not defined?

Thanks

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- October 2nd 2010, 09:18 AMwolfhoundfraction simplify question
If I have sin( )/cos( )

I know that I cannot cancel the( ) on the top and bottom, but**in words**what is the reason for this? because sin/cos is not defined?

Thanks - October 2nd 2010, 09:27 AMskeeter
- October 2nd 2010, 09:48 AMwolfhound
Thanks!