0,001=0,1³
3 3/8=(3/2)³
1 11/25=(6/5)²
<span>x²-3x-2=0
D=9+8=17
x</span>₁=(3+√17<span>)/2
x</span>₂=(3-√17<span>)/2
</span>(3+√17) (3-√17) 9-17 -8
x₁*x₂= ------------<span> * ----------- = --------- = --------- =-2
2 2 4 4
</span>
<span><em>sin²(π-t)/(1+sin(3π/2+t)) - cos(2π-t)=sin²t/(1-cost) - cost=sin²t-cost(1-cost)/(1-cost)=(sin²t-cost+cos²t)/(1-cost)=(1-cost)/(1-cost)=<u>1</u>.</em></span>
2000м/мин вроде так ,хотя возможно неправильно