```python
from sympy import init_session
init_session()
```

    IPython console for SymPy 1.6 (Python 3.7.3-64-bit) (ground types: python)
    
    These commands were executed:
    >>> from __future__ import division
    >>> from sympy import *
    >>> x, y, z, t = symbols('x y z t')
    >>> k, m, n = symbols('k m n', integer=True)
    >>> f, g, h = symbols('f g h', cls=Function)
    >>> init_printing()
    
    Documentation can be found at https://docs.sympy.org/1.6/
    



```python
a, b, k, l0 = symbols('a b k l0', real=True, positive=True)
```


```python
A, B = a**2, b**2
TA = 2*A
A2B = A*A + B
f1 = k**2 + TA*k + A2B
den = A2B + TA*k

f=l0 * f1 / den
f
```


```python
diff(f,l0)
```


```python
da=diff(f,a)
da.factor()
```


```python
db=diff(f,b)
db.factor()
```


```python

```

e9709ccb50263f855b552680afc7a4e238d43495
ipynb
Jupyter Notebook
notebooks/RAC-21_derivatives.ipynb
jeremydavis-2/Jolanta-by-dvr
025f7392ffc40c12ede2f07efefd1f2b0dcd8d35
Apache-2.0
notebooks/RAC-21_derivatives.ipynb
jeremydavis-2/Jolanta-by-dvr
025f7392ffc40c12ede2f07efefd1f2b0dcd8d35
Apache-2.0
notebooks/RAC-21_derivatives.ipynb
jeremydavis-2/Jolanta-by-dvr
025f7392ffc40c12ede2f07efefd1f2b0dcd8d35
Apache-2.0
Qwen/Qwen-72B
1. YES
2. YES