AP EAMCET · Maths · Differential Equations
The equation of the family of curves for which length of the sub normal at any point \((\mathrm{x}, \mathrm{y})\) is always a constant \((\mathrm{k})\) is
- A \(y^2=4 a x\)
- B \(\mathrm{y}^2-\mathrm{A}=2 \mathrm{Kx}\)
- C \(y^2-K=2 x\)
- D \(y^2=K(x+K)\)
Answer & Solution
Correct Answer
(B) \(\mathrm{y}^2-\mathrm{A}=2 \mathrm{Kx}\)
Step-by-step Solution
Detailed explanation
Length of subnormal is \((\mathrm{y}, \mathrm{m})=\mathrm{k}\)…
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