Решите плиззззззз
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Z(x)=y*(1/x²)+7*(sin(x²+y))=y*(-2)*x⁻³+7*cos(x²+y)*(x²+y)=-2y/x³+14x*cos(x²+y)
z(y)=(1/x²)*y+7*cos(x²+y)*(x²+y)=(1/x²)*1+7cos(x²+1)*1=(1/x²)+7cos(x²+y)
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