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Welcome to the Input and Output in C MCQs Page

Dive deep into the fascinating world of Input and Output in C with our comprehensive set of Multiple-Choice Questions (MCQs). This page is dedicated to exploring the fundamental concepts and intricacies of Input and Output in C, a crucial aspect of C Programming. In this section, you will encounter a diverse range of MCQs that cover various aspects of Input and Output in C, from the basic principles to advanced topics. Each question is thoughtfully crafted to challenge your knowledge and deepen your understanding of this critical subcategory within C Programming.

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Check out the MCQs below to embark on an enriching journey through Input and Output in C. Test your knowledge, expand your horizons, and solidify your grasp on this vital area of C Programming.

Note: Each MCQ comes with multiple answer choices. Select the most appropriate option and test your understanding of Input and Output in C. You can click on an option to test your knowledge before viewing the solution for a MCQ. Happy learning!

Input and Output in C MCQs | Page 17 of 42

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Q161.
What is the output of this C code?
#include <stdio.h>
    #include <math.h>
    int main()
    {
        int i = 10;
        printf("%f\n", log10(i));
        return 0;
    }
Discuss
Answer: (b).1.000000
Q162.
What type of inputs are accepted by mathematical functions?
Discuss
Answer: (d).double
Q163.
In linux, apart from including math header file, the program is successfully executed by which of the following?
Discuss
Answer: (d).cc -lm filename.c
Q164.
Which of the following is not a valid mathematical function?
Discuss
Answer: (d).fmod(x);
Q165.
Which of the following mathematical function requires 2 parameter for successful function call?
Discuss
Answer: (d).all of the mentioned
Q166.
Which mathematical function among the following does NOT require int parameters?
Discuss
Answer: (c).sqrt(x);
Discuss
Answer: (a).sine of x where x is in radians
Discuss
Answer: (c).cosine of x where x is in radians
Q169.
What is the output of this C code?
#include <stdio.h>
    #include <math.h>
    void main()
    {
        int k = pow(2, 3);
        printf("%d\n", k);
    }

a.

9

b.

8

c.

-1

d.

6

Discuss
Answer: (b).8
Q170.
What is the output of this C code?
#include <stdio.h>
    #include <math.h>
    void main()
    {
        int k = fabs(-87);
        printf("%d\n", k);
    }
Discuss
Answer: (b).87

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