1. | The counting set [1,2,3,.......] with base 10 is also known as? | ||
A. | Set of natural numbers | ||
B. | Set of whole numbers | ||
C. | Set of integers | ||
D. | Set of rational numbers | ||
3. | The negative integers were introduced because the following equation was not satisfied by the set of whole numbers? | ||
A. | x + 2 = 2 | ||
B. | x + 4 = 2 | ||
C. | x + 2 = 4 | ||
D. | x + 4 = 4 | ||
4. | Solution of the equation of the type 2x = 3 leads to the invention of? | ||
A. | Set of integers | ||
B. | Set of negative numbers | ||
C. | Set of rational numbers | ||
D. | Set of irrational numbers | ||
5. | The solution of the equation such as x^{2} = a ? | ||
A. | Q | ||
B. | Q^{/} | ||
C. | R | ||
D. | Z | ||