C Programming - Floating Point Issues

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Which statement will you add in the following program to work it correctly?

#include<stdio.h>
int main()
{
    printf("%f\n", log(36.0));
    return 0;
}

#include<conio.h>

#include<math.h>

#include<stdlib.h>

#include<dos.h>

We want to round off x, a float, to an int value, The correct way to do is

y = (int)(x + 0.5)

y = int(x + 0.5)

y = (int)x + 0.5

y = (int)((int)x + 0.5)

Which of the following statement obtains the remainder on dividing 5.5 by 1.3 ?

rem = (5.5 % 1.3)

rem = modf(5.5, 1.3)

rem = fmod(5.5, 1.3)

Error: we can't divide

Which of the following range is a valid long double ?

3.4E^-4932 to 1.1E⁺⁴⁹³²

3.4E^-4932 to 3.4E⁺⁴⁹³²

1.1E^-4932 to 1.1E⁺⁴⁹³²

1.7E^-4932 to 1.7E⁺⁴⁹³²

What are the different types of real data type in C ?

float, double

short int, double, long int

float, double, long double

double, long int, float

Why C Programming Floating Point Issues?