1.
а). 3/7 > 2/5
б). 2/3 > 7/11
2.
а). 31/35
б). 17/88
3.
6/35 домашнего задания.
4.
1 17/24 метра.
40000+9000+8
60 000 000+7 000 000+800000+10000+3000+700+40+2
2n-54=27
2n=27+54
2n=81
n=81
1/2 = 30/60
2/3 = 40/60
3/4 = 45/60
4/5 = 48/60
1/6 = 10/60
7/10 = 42/60
11/12 = 55/60
13/20 = 39/60
<span>cosх + cos(π-х) + sin(π/2-х) = sinπ/2</span>
cosx-cosx+cosx=1
cosx=1