Odpowiedź :
(4 cos 30 + 2 tg 60)/(ctg 30 * tg 60 + sin 60 * cos 30) =
= (4 * (√3/2) + 2 * √3)/(√3 * √3 + (√3/2) * (√3/2)) =
= (2√3 + 2√3)/(3 + 3/4) = 4√3/(15/4) = 4√3 * 4/15 = 16√3/15
= (4 * (√3/2) + 2 * √3)/(√3 * √3 + (√3/2) * (√3/2)) =
= (2√3 + 2√3)/(3 + 3/4) = 4√3/(15/4) = 4√3 * 4/15 = 16√3/15
(4*(√3/2)+2*√3)/(√3*√3+(√3/2)*(√3/2))=(2√3+2√3)/(3+3/4)=4√3*/(4/15)=(16√3)/15