4cos(-П/3)-tg(П/4)+2sin(П/6)-cosП=4cos(П/3)-tg(П/4)-2sin(П/6)-cosП=4*1/2-1-2*1/2+1=2-1=1
Решение смотри в приложении
<span>(32)^x=16</span>
<span>(2^5)^x = 2^4</span>
<span>5x = 4</span>
<span>x = 0,8</span>
<span>
</span><span><span>(у^2 -4) * 3/(y-2)^2 = 3(y-2)(y+2)/(y-2)^2 = 3(y+2)/(y-2)</span></span>
Х²+5х+4=0
D=25-16=9
√D=3
x₁=(-5+3)/2=-1
x₂=(-5-3)/2=-4
1) 1\38 * 19\1=2
2)1\2 * 0.2 = 0.5 * 0.2=0.1