First, you need to include
Then, you can use the sin () function to calculate the sine value of x, and its syntax is as follows:
Double crime (double X); // x is a radian value, not an angle.
Finally, you can use the printf () function to output the value of sin(x), for example:
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Including & ltstdio.h & gt
# include & ltmath.h & gt
int main()
{
Double x = 3.14; //define a radian value
double y = sin(x); //Call the sin () function to calculate the sine value of x.
printf("sin(%lf) = %lf\n ",x,y); //output results
Returns 0;
}