" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
maka cos²x = 5/9 (sin²x + cos²x = 1)
cos x =
cot (90 - x) = tan x
tan x = sin x = 2/3 = 2
cos x √5/3 √5