angel234wilcox
17.01.2020 •
Mathematics
Determine whether each first-order differential equation is separable, linear, both, or neither. 1. +=x2y2 2. y+sinx=x3y′ 3. lnx−x2y=xy′ 4. +cosy=tanx
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Ответ:
a) Linear
b) Linear
c) Linear
d) Neither
See explanation below.
Step-by-step explanation:
a)
For this case the differential equation have the following general form:
Where and and since n>1 we can see that is a linear differential equation.
b)
We can rewrite the following equation on this way:
For this case the differential equation have the following general form:
Where and and since n=0 we can see that is a linear differential equation.
c)
For this case we can write the differential equation on this way:
For this case the differential equation have the following general form:
Where and and since n=0 we can see that is a linear differential equation.
d)
For this case we can't express the differential equation in terms:
So the is not linear, and since we can separate the variables in order to integrate is not separable. So then the answer for this one is neither.
Ответ: