MCQ
જો ${x^2} + {y^2} = 1,$ તો .............
- A$yy''-2y'^2+1==0$
- ✓$yy''+y'^2+1==0$
- C$yy''-y'^2+1==0$
- D$yy''-2y'^2+1==0$
$x^1+y^2=1$
$\therefore 2x+2y y^1=0$
$\therefore x+yy^1=0$
$x$ ની સાથે ફરથી વિકલન કરતા.
$1+yy^{11}+y^{12}=0$
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