(Cos² a + 2 sin a cos a + sin² a) - (cos² a -2 sin a cos a + sin² a) =
4 sin a cos a
(Terbukti)
" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
Verified answer
(Cos² a + 2 sin a cos a + sin² a) - (cos² a -2 sin a cos a + sin² a) =
4 sin a cos a
(Terbukti)