**Source Code:**

///solution of non linear equations using secant method#include<stdio.h>#include<math.h>float f(float x){return (pow(x,5) - 3*pow(x,3)-1);}int main(){float a, b, c;int count = 0;printf("Enter the initial value of a: ");scanf("%f", &a);printf("Enter the initial value of b: ");scanf("%f", &b);while(1){count++;c = (a*f(b)-b*f(a))/(f(b)-f(a));if(c==b){break;}if(count>=20){break;}a = b;b = c;}printf("\nThe root after %d iteration is %.7f\n",count, c);return 0;}

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