Q.
The differential equation dxdy=3y2x represents a family of hyperbolas (except when it represents a pair of lines) with eccentricity
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a
85
b
53
c
25
d
52
answer is B.
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Detailed Solution
dxdy=3y2x⇒ ∫2xdx =∫3ydy⇒ x2 =3y22+cor x23−y22=c3 If c is positive, then e=1+23=53If c is negative, then e=1+32=52
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