#include<iostream>
using namespace std;
#include <cmath> 
int main()
{//variables defined here
float a,b,E,x,g,h,y,w,q;
int choice;

cout<<"Which equation would you like to evaluate";
cout<<"\nPress 1 for this equation, y=10+(5a/3b)-b^2";
cout<<"\nPress

#include<iostream>
using namespace std;

int main()
{//variables defined here
float angle,q;

cout<<"Enter angle value ";
cin>>angle;

if (angle==0)
{cout<<"This angle is zero";
}
else if (angle>0&&angle<90)
{cout<<"This is an acute angle";
}
else if (angle=90)

//Lab 9 Problem 3 program that allows user find mass of a particle
#include <iostream>
using namespace std;
int main()
{//defining variables
float m, v, count;
char exit_variable;
cout<<"This is a programme to determine the mass of a particle";
v = 0.2;
while (v<=0.9)
{m=1/(sqrt(1-(v*v)));
cout<<"   when v is"<<v;