" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
szukamy tgx
cos²x=1-1/9
cos²x=8/9
IcosxI=√8/3, cosx>0
cosx=√8/3
tgx=(-1/3):(√8)/3
tgx=-1/√8
tgx=-1/(2√2)
tgx=-√2/4