I just cant get it.

Trig identities:

4 tan(x) = 2tan(2x)/2-sec^2(x):confused:

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- Nov 5th 2006, 07:50 PMxxpl510xxsorry one more!!!
I just cant get it.

Trig identities:

4 tan(x) = 2tan(2x)/2-sec^2(x):confused: - Nov 6th 2006, 04:51 AMtopsquark
- Nov 8th 2006, 08:02 PMxxpl510xx
Ill look it over thanks.