5cos3x=-5 cos3x=-1 3x=п+2пк х=п/3 + 2пк/3
3x³y=4,x²z³=-3⇒x³y=4/3,x²z³=-3
1
4x^5yz^3=4*x³y*x²z³=4*(4/3)*(-3)=-16
2
1/2x^8y²z³=1/2*(x³y)²*x²z³=1/2*16/9*(-3)=-8/3=-2 2/3
3
-x^9yz^9=-(x³y)*(x²z³)³=-4/3*(-27)=36
<span>y=sin(x-3п/4)*cos(x-3п/4)=2/2*sin(x-3п/4)*cos(x-3п/4)=1/2*sin(2x-3п/2)=1/2*cos2x, а дальше преобразование графика у=cosx,</span>