Diketahui tan 1/2 A = t, maka sin A = ...
" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
tan 1/2 a= sin 1/2 a
cos 1/2 a
cos 1/2 a . t= sin 1/2 a
sin a= 2. sin 1/2 a. cos 1/2 a
= 2. cos² 1/2 a.t
= 2. sin² 1/2 a. t
t²
= 2. sin² 1/2 a
t