Deptals Flashcards
What is Mathematical Induction?
A technique used to prove a statement is true for every natural number
What is the first step in Mathematical Induction?
P(1)
3.What does the Basis Step in a Mathematical
Induction Provide?
A starting point for the induction
- What is proven in the Inductive Step of
mathematical induction?
The statement holds for the next case, given it
holds for a particular case
- In a mathematical induction proof, what comes after the inductive hypothesis is made?
Proving the statement for k + 1
- Why is the inductive hypothesis important in
mathematical induction?
It establishes an initial foothold
- Why might a mathematician choose to use
mathematical induction?
To prove the statement for an infinite number of cases
- What is the term for the statement you are trying to prove in a mathematical induction or strong induction proof.
Inductive hypothesis
- What are the limitations of mathematical
induction?
Limited to proving statements about natural
numbers
- Which of the following can be proven using
mathematical induction?
2^n is an even number for positive integers n.
- Is a type of induction in which we assume all of the previous values of k.
Strong Induction
- Prove that given any integer for n, n3 + 2n will be divisible by 3.
3 * (m + k^2 + k + 1) is divisible by 3
- What does the Inductive Step in mathematical induction assume and prove?
a) Assumes the statement holds for an integer k
and proves it for k +
- Why is it important to know the least element in mathematical induction?
c) Because in mathematical induction, you must
start with the least element
- The two steps involved in proving mathematical statements are the base step and inductive step.
a) True
- What is the primary concept behind recursion?
b) Breaking down a problem into smaller, simpler
17.. Which of the following best describes a
self-referential manner in recursion?
b) A function calling itself with simpler input values
- Why is recursion considered important in
solving complex problems?
c) It breaks down complex problems into simpler similar sub-problems
- How does recursion often impact code
simplicity?
c) It makes code more straightforward and easier to read
- What is the base case for the recursive
definition of factorial?
c) 0! = 1
- In sequences, how is recursion often utilized?
b) To define sequences
- What does an explicit formula do?
a) Defines the nth term independently of previous terms
- In geometric sequences, what remains
constant?
c) The ratio between consecutive terms
- What is a recurrence relation?
c) A method of defining a sequence where each
term is a function of the preceding term
- What is a recursive definition?
d) A definition where an object is defined in terms of itself, in simpler form
