PYTHON MULTI CHOICE 1a) Consider the following recursive function: What does thi

Question

PYTHON MULTI CHOICE 1a) Consider the following recursive function:

What does this function do?

It prints a positive value backward, digit by digit

1b) Complete the code for the recursive function printSum shown in this code snippet, which is intended to return the sum of digits from 1 to n:

1c) This function is supposed to recursively compute x to the power n, where x and n are both non-negative integers:

What code should be placed in the blank to accomplish this goal?

1d) Consider the following code segment:

Which line is the base case for this recursive function?

1e) The following function is supposed to use recursion to compute the area of a square from the length of its sides. For example, squareArea(3) should return 9.

What line of code should be placed in the blank to achieve this goal?

1f) How many recursive calls to the fib function shown below would be made from an original call to fib(4)? (Do not count the original call)

1g) Consider the function powerOfTwo shown below:

What is the best interpretation of lines 2 and 3?

Explanation / Answer

Question 1a)
Answer:

Question 1a)
Answer:
It prints a positive value backward, digit by digit

Question 1b)
Answer:

return n + printSum(n - 1)

Question 1c)
Answer:
return 1

Question 1d)
Answer:

# Line 2

Question 1e)
Answer:
return 2 * sideLength - 1 + squareArea(sideLength -1)

Question 1f)
Answer:
4

Question 1g)
Answer:
One is a power of two.

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