освободите от иррациональности в знаменателе дроби
[tex] \frac{6}{5 \sqrt{3} } [/tex]
[tex] \frac{3}{ \sqrt{11- \sqrt{2} } } [/tex]

Какая плотность у шишек лиственницы и пихты?

помогите решить.

1.what ........ last Saturday night?

A) have you done

Б) were you doing
B) did you do

Г) have you been

2.I can't give you a lift because I haven't got a car. I (1) .... you a lift if I (2) .... a car.

А) (1) will give; (2) will have
Б) (1) could give; (2) had
В) (1) gave; (2) would have
Г ) (1) would give; (2) had

3.A spaceship is a machine ...... is Sochi in Russia
А)-

Б) what

В) which

Г) that