" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2025 KUDO.TIPS - All rights reserved.
= sin 45 derajat
= 1/2 √2
cotan 315 derajat = cotan (360-45)
= - cotan 45
= -1
sin 120 derajat / cos 30 derajat = sin (180-60) / 1/2 √3
= sin 60 / 1/2 √3
= 1/2 √3 / 1/2 √3
= 1