1) 4,233-2,786=1,447
2)26,875-0,01=26,865
3)415,63- 148,35=277,28
54÷6=9 (p) blaknot
54-9=45 (p) doroźe kniga cem blaknot
А) y'=24-3x^2=0 x^2=8 x=+√8=2√2 x=-2√2
y(2√2)=24*2√2-8*2√2=√2( 48-16)=32√2
y(-2√2)=24*2√2+16√2=√2(48+16)=64√2
b) y'=-2sinx+1=0 sinx=1/2 x как две серии ответов
x1=π/6+2πn x2=5π/6 +2πn n∈Z
y=2cos[x1]+x1= 2cos(π/6+2πn)+x1=2cos(π/6)+x1=√3+π/6+2πn
y=2 cos(x2)+x2 = 2cos(5π/6)+x2 =-√3+5π/6+2πn n∈Z