Photos Z 5 3X 4Y

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Z 5 3x 4y. (X-Y)(X+Y) формула. X^2+Y^2=3z. Z = U^2*V-V^2*U где u= x * cos y. 4x^2+2z^2-8y.
(X-Y)(X+Y) формула. X^2+Y^2=3z. Z = U^2*V-V^2*U где u= x * cos y. 4x^2+2z^2-8y.

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