Use the Venn diagram to determine which statement correctly describes the relationship between the sets $P$, $Q$, and the elements shown.
Specialist Mathematics · Unit 1 · Introduction to proof · The nature of proof
Use the set notation symbol ‘is an element of’ (∈).
Practise this objective
AI-marked practice questions tied to QCAA mark schemes for this exact LO. Free to start.
Start free practicePractice questions for this objective
Full questions, answers and worked solutions unlock when you start a free practice session.
Consider the sets $A = \{x \in \mathbb{R} : x^2 - 7x + 10 = 0\}$ and $B = \{1, 2, 3, 4, 5, 6\}$. (a) Determine the elements of set $A$ by solving the equation. Express your answer using set notation. (1 mark) (b) Use the symbol $\in$ to write a statement showing whether the value $5$ belongs to set $A$. (1 mark) (c) If $n \in A$ and $n$ is also the larger element in $A$, calculate the value of $n^2 - 10$. (1 mark)
Consider the function $f(x) = x^2 - 5x + 6$ with domain $D = \{x \in \mathbb{R} : 0 \leq x \leq 5\}$ and range $R$. a) Determine the range $R$ of the function. Express your answer using set notation with appropriate inequalities. (2 marks) b) Use the result from part a) to verify whether $-0.25 \in R$ by showing your reasoning. (1 mark)
Consider the sets defined in the stimulus. Determine whether each of the following statements is true or false, providing justification using set notation: (a) $-4 \in A$ (b) $4 \in B$ (c) $6 \in C$ (d) $2i \in E$
Consider the five sets A, B, C, D and E defined in the table above. (a) Determine whether −3 ∈ A is true or false. Justify your answer by checking the membership conditions. (b) Determine whether 4 ∈ B is true or false. Justify your answer by checking the membership conditions. (c) Determine whether √2 ∈ D is true or false. Justify your answer by checking the membership conditions. (d) Determine whether 2i ∈ E is true or false. Justify your answer by checking the membership conditions.
Use the set notation symbol ∈ to complete the statement: Given $A = \{x \in \mathbb{Z} : -3 < x \leq 5\}$, which of the following is true?