The differential equation
is not exact.
For given question,
we have been given a differential equation ![cos(x)dx+\frac{y}{x} dy=0](https://tex.z-dn.net/?f=cos%28x%29dx%2B%5Cfrac%7By%7D%7Bx%7D%20dy%3D0)
We have to determine given differential equation is exact or not.
Compare it with M dx + N dy = 0
⇒ M = cos(x) and N = y/x
Find the derivative of M with respect to y.
![\Rightarrow M_y=-sin(x)](https://tex.z-dn.net/?f=%5CRightarrow%20M_y%3D-sin%28x%29)
Now, find the derivative of N with respect to x.
![\Rightarrow N_x=\frac{-y}{x^{2} }](https://tex.z-dn.net/?f=%5CRightarrow%20N_x%3D%5Cfrac%7B-y%7D%7Bx%5E%7B2%7D%20%7D)
Since
, given differential equation is not exact.
Therefore, the differential equation
is not exact.
Learn more about the differential equation here:
brainly.com/question/14600691
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Answer:
8
Step-by-step explanation:
3x24=72
4x20=80
80-72=8
Answer:
A. $22,500
Step-by-step explanation:
10% = 10/100 = 1/10
To divide a decimal number by 10, move the decimal point one place to the left (remove a zero):
$225000./10 = $22500.0 = $22500
You do 53 can go into 66 1 time so put