MCQOPTIONS
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MCQOPTIONS
This section includes 5 Mcqs, each offering curated multiple-choice questions to sharpen your Discrete Mathematics knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
The g -1({0}) for the function g(x)= x is ___________ |
| A. | {x | 0 x < 1} |
| B. | {x | 0 < x 1} |
| C. | {x | 0 < x < 1} |
| D. | {x | 0 x 1} |
| Answer» E. | |
| 2. |
The function f(x) = x3 is bijection from R to R. Is it True or False? |
| A. | True |
| B. | False |
| Answer» B. False | |
| 3. |
The inverse of function f(x) = x3 + 2 is ____________ |
| A. | f<sup> -1 </sup>(y) = (y 2)<sup> 1/2 </sup> |
| B. | f<sup> -1 </sup>(y) = (y 2)<sup> 1/3 </sup> |
| C. | f<sup> -1 </sup>(y) = (y)<sup> 1/3 </sup> |
| D. | f<sup> -1 </sup>(y) = (y 2) |
| Answer» C. f<sup> -1 </sup>(y) = (y)<sup> 1/3 </sup> | |
| 4. |
Which of the following function f: Z X Z Z is not onto? |
| A. | f(a, b) = a + b |
| B. | f(a, b) = a |
| C. | f(a, b) = |b| |
| D. | f(a, b) = a b |
| Answer» D. f(a, b) = a b | |
| 5. |
The value of 1/2. 5/2 is ______________ |
| A. | 1 |
| B. | 2 |
| C. | 3 |
| D. | 0.5 |
| Answer» B. 2 | |