MCQOPTIONS
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MCQOPTIONS
| 1. |
The differential equation of the system of circles touching the y-axis at the origin is |
| A. | \({x^2} + {y^2} - 2xy\frac{{dy}}{{dx}} = 0\) |
| B. | \({x^2} + {y^2} + 2xy\frac{{dy}}{{dx}} = 0\) |
| C. | \({x^2} - {y^2} + 2xy\frac{{dy}}{dx} = 0\) |
| D. | \({x^2} - {y^2} - 2xy\frac{{dy}}{{dx}} = 0\) |
| Answer» D. \({x^2} - {y^2} - 2xy\frac{{dy}}{{dx}} = 0\) | |