SOLUTION: how would i verify the identity: (sect-1)/tsect= (1-cost)/t

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Question 236197: how would i verify the identity: (sect-1)/tsect= (1-cost)/t
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
verify the identity: (sect-1)/tsect= (1-cost)/t
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Cross-multiply to get:
t(sec(t)-1) = tsec(t)(1-cos(t))
t(sec(t)) - t = tsec(t) - tsec(t)(cos(t))
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Subtract tsec(t) from both sides to get:
-t = -tsec(t)(cos(t))
----
-t = -t*1
-t = -t
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Cheers,
Stan H.