Here is a simple C program that performs the operations you described: ```c #include typedef struct Complex { float real; float imag; } Complex; Complex add(Complex n1, Complex n2) { Complex temp; temp.real = n1.real + n2.real; temp.imag = n1.imag + n2.imag; return temp; } Complex multiply(Complex n1, Complex n2) { Complex temp; temp.real = n1.real * n2.real - n1.imag * n2.imag; temp.imag = n1.imag * n2.real + n1.real * n2.imag; return temp; } int main() { Complex n1, n2, result; printf("For 1st complex number "); printf("Enter real and imaginary part respectively: "); scanf("%f %f", &n1.real, &n1.imag); printf(" For 2nd complex number "); printf("Enter real and imaginary part respectively: "); scanf("%f %f", &n2.real, &n2.imag); result = add(n1, n2); printf("Sum = %.2f + %.2fi ", result.real, result.imag); result = multiply(n1, n2); printf("Product = %.2f + %.2fi", result.real, result.imag); return 0; } ``` This program first defines a structure `Complex` to hold the real and imaginary parts of a complex number. It then defines two functions `add` and `multiply` to perform addition and multiplication of complex numbers, respectively. In the `main` function, it asks the user to input two complex numbers, performs the addition and multiplication, and then prints the results.

Question

Here is a simple C program that performs the operations you described:

```c
#include <stdio.h>

typedef struct Complex {
    float real;
    float imag;
} Complex;

Complex add(Complex n1, Complex n2) {
    Complex temp;
    temp.real = n1.real + n2.real;
    temp.imag = n1.imag + n2.imag;
    return temp;
}

Complex multiply(Complex n1, Complex n2) {
    Complex temp;
    temp.real = n1.real * n2.real - n1.imag * n2.imag;
    temp.imag = n1.imag * n2.real + n1.real * n2.imag;
    return temp;
}

int main() {
    Complex n1, n2, result;

printf("For 1st complex number 
");
    printf("Enter real and imaginary part respectively:
");
    scanf("%f %f", &n1.real, &n1.imag);

printf("
For 2nd complex number 
");
    printf("Enter real and imaginary part respectively:
");
    scanf("%f %f", &n2.real, &n2.imag);

result = add(n1, n2);
    printf("Sum = %.2f + %.2fi
", result.real, result.imag);

result = multiply(n1, n2);
    printf("Product = %.2f + %.2fi", result.real, result.imag);

return 0;
}
```

This program first defines a structure `Complex` to hold the real and imaginary parts of a complex number. It then defines two functions `add` and `multiply` to perform addition and multiplication of complex numbers, respectively. In the `main` function, it asks the user to input two complex numbers, performs the addition and multiplication, and then prints the results.

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