AP EAMCET Engineering 2018 Apr 24 Shift 1 Paper

Section: Mathematics

Question : 43 of 160

Marks: +1, -0

When die coordinate axes are rotated through an angle of 45° about the origin in the positive direction, if the transformed equation of a curve is 17x2 - 16xy + 17y2 = 225 , then the original equation of that curve is

25x2+9y2 = 225
25x2−25y2 = 225
25x2 - 16xy + 9y2 = 225
9x2+25y2 = 225

Validate

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