UCCM1363: Chapter 2

UCCM1363: Chapter 2

University

10 Qs

quiz-placeholder

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UCCM1363: Chapter 2

UCCM1363: Chapter 2

Assessment

Quiz

Mathematics

University

Easy

Created by

Amalina Jan

Used 2+ times

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10 questions

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1.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

What is a predicate?

A statement that is always true.

A sentence that contains variables and becomes a statement when values are substituted.

A type of mathematical function.

A statement that cannot be evaluated.

2.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

What does the universal quantifier '∀' signify?

At least one value is false.

For all values.

There exists at least one.

None of the above.

3.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

What is the truth value of the statement '∀x ∈ ℤ, x + 1 < 4'?

True for some integers only.

True

False

Undefined

4.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

What is a counterexample?

A value that makes a statement true.

A value that makes a universal statement false.

An example that illustrates a concept.

A type of mathematical proof.

5.

MULTIPLE SELECT QUESTION

20 sec • 1 pt

What does the existential quantifier '∃' mean?

Any values.

There exists at least one.

For some values.

For all values.

6.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

Which of the following is a correct negation of the statement '∀ primes p, p is odd'?

∀ primes p, p is even.

∀ primes p, p is not odd.

∃ a prime p such that p is not odd.

∃ a prime p such that p is odd.

7.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

What is the truth value of '∃x ∈ ℝ such that x^2 + 1 = 0'?

True

False

Undefined

True for some real numbers.

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