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OpenStudy (anonymous):
how come the cot90°=0? csc90°=1 and sec90°= undefined therefore 1/undefined? how is that zero?
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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):
|dw:1345267003681:dw|
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