Recent questions tagged parabola

1 votes
1 answer
1
If a focal chord of the parabola $y^2=4ax$ cuts it at two distinct points $(x_1,y_1)$ and $(x_2,y_2)$, then$x_1x_2=a^2$$y_1y_2=a^2$$x_1x_2^2=a^2$$x_1^2x_2=a^2$
0 votes
1 answer
2
0 votes
0 answers
3
A straight line touches the circle $x^2 +y^2=2a^2$ and also the parabola $y^2=8ax$. Then the equation of the straight line is$y=\pm x$$y=\pm (x+a)$$y=\pm (x+2a)$$y=\pm (x...
0 votes
0 answers
4
A straight line touches the circle $x^{2}+y^{2}=2a^{2}$ and also the parabola $y^{2}=8ax.$ Then the equation of the straight line is$y=\pm x$$y=\pm(x+a)$$y=\pm(x+2a)$$y=...
To see more, click for the full list of questions or popular tags.