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OpenStudy (anonymous):
tan(-x)cotx=-1
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OpenStudy (anonymous):
lol gud to know now wat's ur point?
OpenStudy (anonymous):
how do I verify it?
jimthompson5910 (jim_thompson5910):
tan(-x) = -tan(x) .... since tan(x) is an odd function
jimthompson5910 (jim_thompson5910):
so tan(-x)cotx=-1 turns into -tan(x)cot(x)=-1
jimthompson5910 (jim_thompson5910):
with me so far?
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