" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
|R| = √10² + 10² + 2×10×10 cos60
|R| = √100 + 100 + 200 × 1/2
|R| = √200+100
|R| = √300 = 17.32
√ = akar dari