Post a New Question
posted by Kakashi on Sunday, January 11, 2009 at 8:30am.
help me solve this coz im stumped secx-secx sin^2x= cosx thanks
sec x (1 - sin^2x) = cos x sec x * cos^2 x = cos x (1/cos x)*(cos^2 x) = cos x cos x = cos x
More Related Questions