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OpenStudy (ttop0816):
Simplify the following expression. sec^2x + sin^2x - tan^2x + cos^2x -2 0 1 2
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hartnn (hartnn):
just pythagorean identities \(\Large \sin^2x+\cos^2x =1 \\ \Large \sec^2x -\tan^2x =1\)
hartnn (hartnn):
sec^2x + sin^2x - tan^2x + cos^2x = (sec^2x - tan^2x) + (sin^2x + cos^2x) =...
OpenStudy (ttop0816):
@hartnn 2??
hartnn (hartnn):
absolutely :)
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