" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2025 KUDO.TIPS - All rights reserved.
a=tgα=-1 ⇒ α=135⁰
tg(180-α)=-tgα
tg(180-45)=-tg45=-1
2.
L=sinx*cosx(sin²x+cos²x)=sinx*cosx*1=sinx*cosx
L=P