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trig. identities
woodybar
02/07/05
can someone please prove this for me, i get either minus signs or plus signs, never one and the other
cotø-tanø = 2cot2ø
Summary of Answers Received
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1.
On the left you have 1/tanA -tanA or (1-tan^2A)/tanA on the...
02/07/05
raridon
2.
Raridon's answer is, of course, correct but it leaves out...
02/07/05
jnlomonte
3.
I will use T for theta. cotT - tanT = cosT/sinT - sinT/cos...
04/28/05
MathMaven53
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