Răspunsuri

2014-01-18T14:32:33+02:00
Arctg (sqrt(3)/3) = pi/6
arctg x/3 = pi/3-pi/6
arctg x/3 = pi/6
aplicam functia tg si obtinem
tg(arctg(x/3))=tg(pi/6)
x/3=sqrt(3)/3
rezulta x=sqrt(3)
2014-01-18T16:58:00+02:00
Arctg (1/sqrt 3)= pi/6
arctg x/3+pi/3=pi/3
arctg x/3=pi/3-pi/6
arctg x/3=pi/6
x/3=1/sqrt(3)
x/3 = sqrt(3)/3
x=sqrt (3)