SOLUTION: Write the equation of the conic section x² + y² = 4 after a rotation of 45° about the origin. (x')² - 2x'y' + (y')² = 4 (x')² + (y')² = 16 (x')² + 2x'y' + (y')² = 16 (x')² +

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Question 1034379: Write the equation of the conic section x² + y² = 4 after a rotation of 45° about the origin.
(x')² - 2x'y' + (y')² = 4
(x')² + (y')² = 16
(x')² + 2x'y' + (y')² = 16
(x')² + (y')² = 4
Answer by ikleyn(52781)   (Show Source): You can put this solution on YOUR website!
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Write the equation of the conic section x² + y² = 4 after a rotation of 45° about the origin. 

(x')² - 2x'y' + (y')² = 4
(x')² + (y')² = 16
(x')² + 2x'y' + (y')² = 16
(x')² + (y')² = 4                <--- This and only this

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