Rotate the axes to eliminate the xy-term in the equation. Then write the equation in standard form.

Rotate the axes to eliminate the xy-term in the equation. Then write the equation in standard form. (Use xp for x' and yp for y' in your answer. Rotate the coordinate axes through an angle θ with 0 ≤ θ ≤ π/2.)

2x² + xy + 2y² − 7 = 0

asked Nov 21, 2018 in TRIGONOMETRY by anonymous
reshown Nov 26, 2018 by bradely

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Rotate the axes to eliminate the xy-term in the equation. Then write the equation in standard form.

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