" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
(sin x / cos x) / (sin x . 1/cos x) = 1
(sin x / cos x) / (sin x / cos x) = 1
(sin x / cos x) x (cos x / sin x) = 1
(sin x . cos x) / (sin x . cos x) = 1
1 = 1