Write the set $\{ x : x \text{ is a positive integer and } x^2 < 40 \}$ in the roster form.
- A$\{1, 2, 3, 4, 5, 6\}$
- B$\{1, 2, 3, 4, 5\}$
- C$\{0, 1, 2, 3, 4, 5, 6\}$
- D$\{2, 3, 4, 5, 6\}$
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Similar Questions
Which of the following is a true statement?
Medium
View SolutionMatch each of the set on the left described in the roster form with the same set on the right described in the set-builder form:
$(i) \{ P,R,I,N,C,A,L\} $ $(a) \{ x:x \text{ is a positive integer and is a divisor of } 18\} $ $(ii) \{ 0\} $ $(b) \{ x:x \text{ is an integer and } x^2 - 9 = 0\} $ $(iii) \{ 1,2,3,6,9,18\} $ $(c) \{ x:x \text{ is an integer and } x + 1 = 1\} $ $(iv) \{ 3, -3\} $ $(d) \{ x:x \text{ is a letter of the word } PRINCIPAL\} $
| $(i) \{ P,R,I,N,C,A,L\} $ | $(a) \{ x:x \text{ is a positive integer and is a divisor of } 18\} $ |
| $(ii) \{ 0\} $ | $(b) \{ x:x \text{ is an integer and } x^2 - 9 = 0\} $ |
| $(iii) \{ 1,2,3,6,9,18\} $ | $(c) \{ x:x \text{ is an integer and } x + 1 = 1\} $ |
| $(iv) \{ 3, -3\} $ | $(d) \{ x:x \text{ is a letter of the word } PRINCIPAL\} $ |
Medium
View SolutionIf $A = \{x \in \mathbb{R} : x^2 + 5|x| + 6 = 0\}$,then $n(A) = $
Which of the following sets is finite or infinite?
The set of months of a year.
The set of months of a year.
Easy
View SolutionWrite the following as intervals: $\{ x:x \in R, 3 \le x \le 4 \}$
Easy
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