L=[10,20,30,40]
L1=[500,600]
L2=[35,45]
L1.extend(L2)
L.insert(25,2)
print (L1+L2)
print (L)
print (L.index(30))
print (L2*2)
Answers
Answer:
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Given statements:
L=[10,20,30,40]
L1=[500,600]
L2=[35,45]
L1.extend(L2)
L.insert(25,2)
print(L1 + L2)
print(L)
print(L.index(30))
print(L2*2)
Output:
[500, 600, 35, 45, 35, 45]
[10, 20, 30, 40, 2]
2
[35, 45, 35, 45]
Explanation:
L=[10,20,30,40]
L1=[500,600]
L2=[35,45]
These are the given lists.
1. L1.extend(L2)
- The extend() method is used to extend a given list with another one.
Hence, L1's present value will be:
L1 = [500, 600, 35, 45] #extending the list with elements from L2
Now, the lists we have are:
L=[10,20,30,40]
L1 = [500, 600, 35, 45]
L2=[35,45]
2. L.insert(25, 2)
- The insert() method is used to insert an element at a specified index position.
Here, the index position given was 25, which is clearly out of range. Hence, the value (2) will be added to the end of the list.
L's present value will be:
L = [10, 20, 30, 40, 2]
The lists we have now are:
L = [10, 20, 30, 40, 2]
L1 = [500, 600, 35, 45]
L2 = [35, 45]
3. print(L1 + L2)
This is similar to concatenation, which is adding two lists together. The output for that would be:
[500, 600, 35, 45, 35, 45]
4. print(L)
[10, 20, 30, 40, 2]
5. print(L.index(30))
- The index() method enables a programmer to print the index value of a given element from a list.
The index value of 30 from the list L is 2.
Hence the output:
2
6. print(L2*2)
This is simply just repeating the elements in the list twice.
[35, 45, 35, 45]