Y=k/x A(-2; -4,5)
x=-2 y=-4,5
-4,5=k/-2
k=(-4,5)*(-2)
k=9
y=9/x - искомая функция
√81×√16-√125/√5+2√(-3)²=9×4-5+2×3=36-5+6=37
<span>1) <span>3^3*y^3-3*x^4*y^2+9*x^2*y=3y*(9y^2-x^4y+3x^2)</span></span>
<span>2) <span>2x-x^2+y^2+2y=(y-x+2)*(y+x)</span></span>
64-x^2≥0
x^2≤64
x^2=64
x=8; x=-8
x∈(-8;8)