When we adding the given two series what will be the outptut ?
seriesA = pd.Series([1,2,3,4,5], index = ['a', 'b', 'c', 'd', 'e'])
seriesB = pd.Series([10,20,-10,-50,100], index = ['z', 'y', 'a', 'c', 'e'])
seriesA + seriesB
1
a -9.0
b NaN
c -47.0
d NaN
e 105.0
y NaN
z NaN
b NaN
c -47.0
d NaN
e 105.0
y NaN
z NaN
2
a -9.0
b 0
c -47.0
d 0
e 105.0
y 0
z 0
b 0
c -47.0
d 0
e 105.0
y 0
z 0
3
a -9.0
b Null
c -47.0
d Null
e 105.0
y Null
z Null
b Null
c -47.0
d Null
e 105.0
y Null
z Null
4
a -9.0
b 2.0
c -47.0
e 105.0
y 20.0
z 10.0
b 2.0
c -47.0
e 105.0
y 20.0
z 10.0