2 станок-x
1 станок-x-2
8мин-8/60ч=2/15ч
140/(x-2)-140/x=2/15
извини,я не умкю таких уравнений решать
Answer:
Arrange the equations. You get
x
=
5
and
y
=
2
Explanation:
x
−
3
y
=
−
1
−
x
−
2
y
=
−
9
(after multiplying the 2nd equation by -1#
Now add these:
−
5
y
=
−
10
y
=
2
Put this value in the 1st original equation:
x
−
(
3
×
2
)
=
−
1
x
−
6
=
−
1
x
=
−
1
+
6
x
=
5
<span>sin x + √3 cos x = 0 /cosx
tgx+</span>√3=0<span>
tgx=-√3
x=-π/3+πk,k∈z</span><span>
π/2<-π/3+πk<π *6/π
3<-1+6k<6
4/6<k<7/6
k=1 x=-π/3+π=2π/3=120гр</span>