berarti
cos @ = a. b / |a|.|b|
cos 60° = a. b / (2.3)
1/2 = a. b / 6
a. b = 6/2
a. b = 3
(a+b).b =
a. b + b² =
a b + |b|² =
3 + (3)² =
3 + 9 =
12
" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
berarti
cos @ = a. b / |a|.|b|
cos 60° = a. b / (2.3)
1/2 = a. b / 6
a. b = 6/2
a. b = 3
(a+b).b =
a. b + b² =
a b + |b|² =
3 + (3)² =
3 + 9 =
12