5 items are filed under this topic.
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A trig identity |
2006-12-28 |
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From Courteny:
Prove that 1 - cos 2x + sin 2x (divided by) 1 + cos 2x + sin 2x = tan x
Answered by Penny Nom. |
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A trig identity |
2003-05-20 |
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From Patty:
Please help with the following
1/ tanx + cotx = sinxcosx
Answered by Penny Nom. |
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A trig identity |
2003-02-22 |
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From Ron:
We have spent hours trying to solve the following identity without success. Can you give us some hints as to how it is done?
1 + tan(x) tan(2x) = tan(2x) cot(x) -1
Answered by Penny Nom. |
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An identity(?) |
2002-05-02 |
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From A student:
prove identity sin 2x/1-sinx= secx+1/secx
Answered by Paul Betts. |
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A trig identity |
2001-07-27 |
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From Jeff:
prove this identity and show steps
tan(x/2+pi/4)=secx+tanx
Answered by Harley Weston. |
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