Mathematics · 2019
JEE Main · 10 January 2019, Shift 2 · Q77
The curve amongst the family of curves represented by the differential equation, (x^2-y^2) d x+2 x y d y=0 which passes through (1,1), is:
The curve amongst the family of curves represented by the differential equation, $\displaystyle \left(x^2-y^2\right) d x+2 x y d y=0$ which passes through $\displaystyle (1,1)$, is :
Official answer
(1)
a circle with centre on the $\displaystyle x$-axis.
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JEE Main 2019 Mathematics question, with the answer from NTA’s final answer key. Where our answers come from.