1) f`(y)=3
2) f`(y)= -2x^3+1
3) f`(y)=-3sin(2-2x)*(-2)= 6sin(2-2x)
4) f`(y)= 9x^2*(3x^3-1)+9x^2*(3x^3+1)= 27x^6-9x^2+27x^6+9x^2= 54x^6
5) f`(y)= (-3(3+2x)-2(2-3x))/(3-2x)^2= (-9-6x-4+6x)/(3-2x)^2= -13/(3-2x)^2
1) f`(y)=3
2) f`(y)= -2x^3+1
3) f`(y)=-3sin(2-2x)*(-2)= 6sin(2-2x)
4) f`(y)= 9x^2*(3x^3-1)+9x^2*(3x^3+1)= 27x^6-9x^2+27x^6+9x^2= 54x^6
5) f`(y)= (-3(3+2x)-2(2-3x))/(3-2x)^2= (-9-6x-4+6x)/(3-2x)^2= -13/(3-2x)^2