MCQ
Find the order of differential equations$:\ 2\text{x}^2\frac{\text{d}^2\text{y}}{\text{d}\text{y}^2}-3\frac{\text{dx}}{\text{dx}}+\text{y}=0$
  • $2$
  • B
    $1$
  • C
    $0$
  • D
    Undefined

Answer

Correct option: A.
$2$
Given, the differential equation is:
$2\text{x}^2\frac{\text{d}^2\text{y}}{\text{d}\text{y}^2}-3\frac{\text{dx}}{\text{dx}}+\text{y}=0$
Or we can write:
$2 x^2 y^{\prime \prime}-3 y^{\prime}+y=0$
Order is the highest derivative in the differential equation.
Therefore, the order is $2.$

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Similar questions

$a = 3i - 5j$ and $b = 6i + 3j$ are two vectors and $c$ is a vector such that $c = a \times b$, then $|a|:|b|:|c|$ is
Let $f,\ f',\ f''$ be continuous in $[0, ln\ 2]$ and $f(0) = 0 , f '(0) = 3, f(ln\ 2) = 6 , f'(ln\ 2) = 4$ and $\int\limits_0^{\ln 2} {{e^{ - 2x}}f(x)dx}  = 3$ , then $\int\limits_0^{\ln 2} {{e^{ - 2x}}f''(x)dx} $ is
Suppose $\left| {\begin{array}{*{20}{c}}
  {f'\left( x \right)}&{f\left( x \right)} \\ 
  {f''\left( x \right)}&{f'\left( x \right)} 
\end{array}} \right| = 0$ where $f(x)$ is continuously differentiable function with $f'(x) \ne  0$ and satisfy $f(0) = 1$ and $f'(0) = 2$ , then the number of solution $(s)$ of equation $f(x) = x^2$ is equal to 
Let $f: R \rightarrow R, g: R \rightarrow R$ be two functions such that $f(x)=2 x-3, g(x)=x^3+5$. The function $($fog $))^{-1}(x)$ is:
Three numbers are chosen at random, one after another with replacement, from the set $S=\{1,2,3, \ldots, 100\}$. Let $p_1$ be the probability that the maximum of chosen numbers is at least 81 and $p _2$ be the probability that the minimum of chosen numbers is at most $40$ .

($1$) The value of $\frac{625}{4} p _1$ is

($2$) The value of $\frac{125}{4} p _2$ is

Give the answer or queution ($1$) and ($2$)

Suppose the function $f (x) - f (2x)$ has the derivative $5$ at $x = 1$ and derivative $7$ at $x = 2$. The derivative of the function $f (x) - f (4x)$ at $x = 1$, has the value equal to
Let $f(x)=|x|$ and $g(x)=\left|x^3\right|,$ then :
The differential equation satisfied by $\text{ax}^{2}+\text{by}^{2}=1$ is:
The value of objective function is maximum under linear constraints
A relation $R$ is defined on $N$. Which of the following is the reflexive relation?