I can't seem to solve this one. Could someone please show me?

1 - tan^2X

__________ = cos^2X - sin^2X

1 + tan^2X

Thanks!

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- May 10th 2009, 03:42 PMdemo1[SOLVED] Proving Trig Identities
I can't seem to solve this one. Could someone please show me?

1 - tan^2X

__________ = cos^2X - sin^2X

1 + tan^2X

Thanks! - May 10th 2009, 03:51 PMTheEmptySet
- May 10th 2009, 04:02 PMdemo1
- May 10th 2009, 04:15 PMTheEmptySet
- May 10th 2009, 05:22 PMdemo1