Question

Fie ABCD un dreptungi cu AB=3CM , BC=4. Calculati sin<BAC, TG <ACB, dau Coroanaa

Answer 1

In,Δdr.ABC,aflam,ipotenuza,AC,DIRECT,fara,calcule,stiind,ca,3,4,5,sunt,numere,pitagorice.Adica,daca,doua,catete,sunt,de,3,respectiv,4,cm,atunci,ipotenuza,este,intotdeauna=5

sinBAC=cat.opusa/ipotenuza=4/5=0,8
tgACB=cat.opusa/cat.alaturata=3/4=0,75