" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2025 KUDO.TIPS - All rights reserved.
1 +sin α (1+sinα) (1 - sinα)
= cosα(1-sinα)
1 - sin²α
= cosα(1-sinα)
cos²α
cos α = 1 - sinα terbukti
1+sinα cosα