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Question: Answered & Verified by Expert
If the origin is shifted to the point $(1,1)$ and the axes are rotated through an angle $45^{\circ}$ about this point, then the transformed equation of the equation $x^2+2 x y+y^2-1=0$ is
MathematicsStraight LinesAP EAMCETAP EAMCET 2018 (24 Apr Shift 2)
Options:
  • A $2 y^2-4 \sqrt{2} y-3=0$
  • B $2 y^2+4 \sqrt{2} y-3=0$
  • C $2 x^2+4 \sqrt{2} x+3=0$
  • D $2 x^2-4 \sqrt{2} x+3=0$
Solution:
2705 Upvotes Verified Answer
The correct answer is: $2 x^2+4 \sqrt{2} x+3=0$
No solution. Refer to answer key.

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