Răspuns:
C(x) se află pe axa absciselor in grafic deci se va calcula :
C(x)= c × cos alpha
[tex]c(x) = 25 \times \frac{1}{2 } = \frac{25}{2} = 12.5 \: cm[/tex]
C(y)=c × sin alpha
[tex]c(y) = \frac{25 \times \sqrt{3} }{2} = \frac{25 \sqrt{3} }{2} \: cm[/tex]
[tex] \cos(60) = \frac{1}{2} [/tex]
[tex] \sin(60) = \frac{ \sqrt{3} }{2} [/tex]
mult succes !
