3sint+4>=3*(-1)+4=-3+4=1
sint>=-1
4cost-4>=-4-4=-8
3cost-1>=3*(-1)-1=-3-1=-4
3sint-1>=38(-1)-1=-3-1=-4
4cost-4<=4*1-4=0
-4sint-1<=-4*(-1)-1=4-1=3
1)=ху²(1+ху)
2)=а²b²(a²-b²)=a²b²(a-b)(a+b)
3)=mn²(m+n)
4)=a³b²(1+a²b)
5)=c³d²(1-c)
6)=-x³y³(x²+y²)
Наверное вот так получится
1)
(a² + b²)³ =(a²)³ + 3*(a²)² * b² + 3a² * (b²)² + (b²)³ =
=a⁶ +3a⁴b² + 3a²b⁴ +b⁶
2)
(x² - y²)³=(x²)³ - 3*(x²)² * y² + 3x² * (y²)² - (y²)³=
=x⁶ -3x⁴y² + 3x²y⁴ - y⁶
3)
(2m² - 3n²)³ = (2m²)³ - 3*(2m²)² * 3n² + 3 * 2m² *(3n²)² - (3n²)³ =
= 8m⁶ - 36m⁴n² + 54m²n⁴ - 27n⁶