Maths-
General
Easy
Question
The equation of normal in terms of slope m to the parabola (y – 2)2 = 4 (x – 3)
- y = mx – 2m – m3
- y = mx – 5m – m3 + 2
- y – 2 = mx – 2m – m3
- none of these
The correct answer is: y = mx – 5m – m3 + 2
To find the equation of normal.
Given , parabola (Y – 2)2 = 4 (X – 3)
Using equation of normal to parabola is .
Here comparing the equations of parabola we get a = 1; y = (Y – 2) and x = (X – 3)
Then substitute them in
Therefore, Using equation of normal to parabola is y = mx – 5m – m3 + 2 is the equation of normal in terms of slope.
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