1
TS EAMCET 2023 (Online) 12th May Morning Shift
MCQ (Single Correct Answer)
+1
-0
If $m$ and $n$ are respectively the order and degree of the differential equation of the family of parabolas with origin as its focus and $X$-axis as its axis, then $m n-m+n=$
A
1
B
2
C
3
D
4
2
TS EAMCET 2023 (Online) 12th May Morning Shift
MCQ (Single Correct Answer)
+1
-0
The general solution of $\frac{d y}{d x}+y f^{\prime}(x)-f(x) f^{\prime}(x)=0$, $y \neq f(x)$ is
A
$y=f(x)+1+c e^{-f(x)}$
B
$y=c e^{-f(x)}$
C
$y=f(x)-1+c e^{-f(x)}$
D
$y=f(x)+c e^{f(x)}$
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