第 12 类 RD Sharma 解决方案 - 第 22 章微分方程 - 练习 22.1 |设置 1
确定下列微分方程的阶和阶。还要说明它是线性的还是非线性的(问题 1-13)
问题 1。
解决方案:
We have,
Order of function:
The Highest order of derivative of function is 3 i.e.,
So, the order of derivative is equal to 3.
Degree of function:
As the power of the highest order derivative of function is 1 (i.e., power of is 1)
So, degree of function is 1.
Linear or Non-linear:
The given equation is non-linear.
问题2。
解决方案:
We have,
Order of function:
As the highest order of derivative of function is 2.(i.e.,)
So, Order of the function is equal to 2.
Degree of function:
As the power of the highest order derivative of the function is 1(i.e., power of is 1)
So, Degree of the function is equal to 1.
Linear or Non-linear:
The given equation is linear.
问题 3。
解决方案:
We have,
Order of function:
As the highest order of derivative of function is 1 (i.e., )
So, Order of the function is equal to 1.
Degree of function
As the power of the highest order derivative of the function is 3 (i.e., power of dy/dx is 3)
So, the degree of the function is equal to 3.
Linear or Non-linear:
The given equation is non-linear.
问题 4。
解决方案:
We have,
On squaring both side, we get
On cubing both side, we get
Order of function:
As the highest order of derivative of function is 2 (i.e.,
So, Order of the function is equal to 2.
Degree of function:
As the power of the highest order derivative of the function is 2. (i.e., power of is 2)
So, the Degree of the function is equal to 2.
Linear or Non-linear:
The given equation is non-linear.
问题 5。
解决方案:
We have,
Order of function:
As the highest order of derivative of function is 2
So, Order of the function is equal to 2.
Degree of function:
As the power of the highest order derivative of function is 1 (i.e., power of is 1)
So, the Degree of the function is equal to 1.
Linear or Non-linear:
The given equation is non-linear.
问题 6。
解决方案:
We have,
On cubing both side, we get
On squaring both side, we get
Order of function:
As the highest order of derivative of function is 2 (i.e., )
So, the Order of the function is equal to 2.
Degree of function:
As the power of the highest order derivative of the function is 2(i.e., power of is 2)
So, the Degree of the function is equal to 2.
Linear or Non-linear:
The given equation is non-linear.
问题 7。
解决方案:
We have,
On squaring both side, we get
Order of function:
The highest order of derivative of function is 4 (i.e., )
So, the order of the derivative is equal to 4.
Degree of function:
As the power of the highest order derivative of the function is 2 (i.e., power of is 2)
So, the degree of function is 2.
Linear or Non-linear:
The given equation is non-linear.
问题 8:
解决方案:
We have,
On squaring both side, we have
Order of function:
As the highest order of derivative of function is 1.
So, the Order of the function is equal to 1.
Degree of function:
As the power of the highest order derivative of the function is 1.
So, the degree of the function is equal to 1.
Linear or Non-linear:
The given equation is linear.
问题 9:
解决方案:
We have,
Order of function:
As the highest order of derivative of function is 2 (i.e.,)
So, order of derivative is equal to 2.
Degree of function:
As the power of the highest order derivative of the function is 1 (i.e., power of is 1)
So, the Degree of the function is equal to 1.
Linear or Non-linear:
The given equation is linear.
问题 10:
解决方案:
We have,
Order of function:
As the highest order of derivative of the function is 2.
So, the Order of the function is equal to 2.
Degree of function:
As the power of the highest order derivative of the function is 1 (i.e., power of is 1)
So, the Degree of the function is equal to 1.
Linear or Non-linear:
The given equation is non-linear.
问题 11:
解决方案:
We have,
Order of function:
As the highest order of derivative of the function is 2
So, the Order of the function is equal to 2.
Degree of function:
As the power of the highest order derivative of the function is 3. (i.e., power of is 3)
So, the degree of the function is equal to 3.
Linear or Non-linear:
The given equation is non-linear.
问题 12:
解决方案:
We have,
Order of function:
As the highest order of derivative of the function is 3
So, the Order of the function is equal to 3.
Degree of function:
As the power of the highest order derivative of the function is 1.(i.e., power of is 1)
So, the Degree of the function is equal to 1.
Linear or Non-linear:
The given equation is non-linear.
问题 13:
解决方案:
We have,
Order of function:
As the highest order of derivative of the function is 1
So, the Order of the function is equal to 1.
Degree of function:
As the power of the highest order derivative of the function is 1. (i.e., power of dy/dx is 1)
So, the Order of the function is equal to 1.
Linear or Non-linear:
The given equation is non-linear.