Write equation in terms of a rotated x y system using θ the angle of rotation. Write the equation involving x’ and y’ in standard form.

13x^2 -10xy + 13y^2 -72 =0 ; θ=45°

Write equation in terms of a rotated x y system using θ the angle of rotation. Write the equation involving x’ and y’ in standard form.

13x^2 -10xy + 13y^2 -72 =0 ; θ=45°