How many liters give u 3.1KL
1 answer:
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Answer:
Step-by-step explanation:
You have the following differential equation:
This equation can be written as:
where
If the differential equation is exact, it is necessary the following:
Then, you evaluate the partial derivatives:
The partial derivatives are equal, then, the differential equation is exact.
In order to obtain the solution of the equation you first integrate M or N:
(1)
Next, you derive the last equation respect to t:
however, the last derivative must be equal to M. From there you can calculate g(t):
Hence, by replacing g(t) in the expression (1) for F(t,y) you obtain:
where C is the constant of integration
Answer:
x= -2 and 9
Step-by-step explanation:
factorize it
- 18 = 2×3×3
TO MAKE IT 7
3×3=9
9-2 =7
x(x+9)-2(x+9)=0
x-2=0 ,x+9=0
x =2 x=-9