how do i simplify this: (sin^2(a)+2cos(a)-1) and make it into (2cos(a)-cos^2(a))
Follow Math Help Forum on Facebook and Google+
use
can you explain more please. how do i get cos^2? i only got sin^2
From the given identity(in post #2) of course. use it to define sin^2 using cos^2. Come on, can't be more helpful
wow, i still can't get it, can you elaborate please
Originally Posted by ahmedb wow, i still can't get it, can you elaborate please Surely if then Substitute this in place of . You've asked very similar questions in about four different threads, surely you have learnt something by now...
yes i did
View Tag Cloud