6. f'=-2*sin2x+sqrt(3)=0
sin2x=sqrt(3)/2 x=П/6+Пn П/6;7/6П;13/6П;19/6П
x=1/3П+Пn П/3; 4/3П; 7/3П; 10/3П
5. f'=12-3x^2=3(4-x^2)=3(2-x)(2+x)<=0</p>
]-~;-2]U]2;~[
4. s'=5t^4-3t^2 S'(2)=5*2^4-3*2^2=5*16-12=80-12=68
3/f'=2cosx+6x-2П
f](П/3)=2*1/2+2П-2П=1
2.y'=x^9-x^6+sqrt(3)
y'(1)=1-1+sqrt(3)=sqrt(3)
tg(x)=sqrt(3)
x=60 градусов