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Mathematics 7 Online
OpenStudy (anonymous):

how come the cot90°=0? csc90°=1 and sec90°= undefined therefore 1/undefined? how is that zero?

OpenStudy (anonymous):

= cos90/sin90

OpenStudy (anonymous):

I think these are the concepts based on Unit Circle which I don't know..

OpenStudy (anonymous):

@UnkleRhaukus is here he can explain you I think..

OpenStudy (anonymous):

okay but how come the csc and sec give a different answer.

OpenStudy (unklerhaukus):

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