" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
cos (x + y) = sen(-x) --> sen (-x) = cos(90 - (-x)) Por co-razones
cos (x+ y) = cos(90+x)
x+y= 90 +x
y= 90