SOLUTION: complete the identity -1+sec^2a ---------- (over) Tana

Question 912949: complete the identity
-1+sec^2a
---------- (over)
Tana
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
complete the identity
(-1+sec^2(a)) / Tan(a) = ?
-----
Since sin^2 + cos^2 = 1
Dividing by cos^2 you would get:
tan^2 + 1 = sec^2
---
then 1-sec^2 = -tan^2
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Your Problem::
(-1+sec^2(a)) / Tan(a) = ?
-----
-tan^2(a) / tan(a) = -1
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Cheers,
Stan H.
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