English, asked by debranjandutta8, 2 months ago

which of the following is a parabolic cylinder in space? x2-y2=1, X2+y2=1, y=4x, y2=4x
   {x}^{2}  -  {y}^{2}  = 1 \\  {x}^{2}   +  {y}^{2}  = 1 \\ y = 4x \\  {y}^{2}  = 4x

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Answered by pallavisaxena945
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