2sinxcosx = cosx
2sinxcosx - cosx = 0
cosx ( 2sinx - 1 ) = 0
cosx = 0 2sinx - 1 = 0
x = p/2 + pn 2sinx = 1
sinx = 1
x = (-1)^n p\2 + pn
4,5х +1,25=37 1\2
4,5х =37 1\2<span>-1,25
</span><span>4,5x = 37,5 - 1,25
4,5x = 36,25
x = 36,25 : 4,5
x = 8 1/30</span>
1) y'=3*e^(3x+2)
2) y'=3*x^3+(3x-1)*3*x^2=3x^2*(4x-1)
3) =lim(2*(x+1/2))*(x+1/2)=lim(2)=2.