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Mathematics
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cosx-cosx/1-tanx = sinxcosx/sinx-cosx halp :c
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cos X = adj / hyp = b / c , sec X = hyp / adj = c / b ,
need to prove it :/
cscX = 1 / sinX sinX = 1 / cscX secX = 1 / cosX cosX = 1 / secX tanX = 1 / cotX cotX = 1 / tanX tanX = sinX / cosX cotX = cosX / sinX
cosx - cosx ?
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