P = 12П (пи) или P~37,69911
<span>x /: х-2 + 8 /(2-x)(2+x) - 1/: х+2 = 0</span>
<span>x(2+x)-8-(x-2)=0 x/=-2 x/=2</span>
<span>x^2+x-6=0</span>
<span>x1=-3</span>
<span>x2=2 не подходит</span>
Sin(7π/2-3x)=sin(2π+(3π/2-3x))=sin(3π/2-3x)=-cos3x
(√10-2√2)/(2√5-4)=√2(√5-2)/2(√5-2)=√2/2
-cos3x=√2/2
cos3x=-√2/2
3x=-3π/4+2πn U 3x=3π/4+2πn
x=-π/4+2πn/3 U x=π/4+2πn/3
Ответ наим полож корень х=π/4