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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Originally Posted by demo1 I can't seem to solve this one. Could someone please show me? 1 - tan^2X __________ = cos^2X - sin^2X 1 + tan^2X Thanks! Multiply the numerator and denominator by
Originally Posted by TheEmptySet Multiply the numerator and denominator by How do you get from to here ? Thanks btw!
Originally Posted by demo1 How do you get from to here ? Thanks btw! The pythagorean identity
Originally Posted by TheEmptySet The pythagorean identity Ah, I really need to review these. Can't believe I didn't see that. Thanks!
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