Given that S and T are sets of real numbers such that S = {x : 0 ≤ x ≤ 5} and T = {x : − 2

Correct Answer is : −2≤≤≤5

Correct Answer is : −2≤≤≤5

Test Index

JAMB Mathematics 2015 Paper

Question : 38

Total: 61

\leq

\leq

\cup

Solution:

Concept:

The union of two sets contains every element that belongs to either set.

Explanation:

S

covers all real numbers from

0

5

, inclusive:

0 \leq x \leq 5

T

covers all real numbers strictly greater than

-2

and strictly less than

3

-2 < x < 3

Combining both ranges, every number from just above

-2

up to and including

5

is included.

Therefore,

S \cup T = \{x : -2 < x \leq 5\}

Answer:

-2 < x \leq 5

Go to Question:

Prev Question

Next Question