" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
cos 45 = 1/2 √2
tan 60 = √3
sin 30 + 2 cos 45 - 4 tan 60 =
= 1/2 + 2 (1/2 √2) - 4 (√3)
= 1/2 + √2 - 4√ 3