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Fittoniya [83]
3 years ago
15

1. Which of the following statements is true regarding the use of refrigerants?

Computers and Technology
2 answers:
kondaur [170]3 years ago
5 0
A) Records of the dates and quantities of refrigerant recovered and recycled are unnecessary
CaHeK987 [17]3 years ago
5 0

Answer

The statement which is true regarding the use of refrigerants is; A. Records of the dates and quantities of refrigerant recovered and recycled are unnecessary

Explanation

A refrigerant is a substance in fluid form used in a heat pump and refrigeration cycle. A refrigerant absorbs heat from the environment and provides air conditioning when combined with a compressor or evaporator. Technicians are advised to do better recapture, recycle and dispose of refrigerant safely.


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The value of the mathematical constant e can be expressed as an infinite series: e=1+1/1!+1/2!+1/3!+... Write a program that app
LUCKY_DIMON [66]

Answer:

// here is code in c++ to find the approx value of "e".

#include <bits/stdc++.h>

using namespace std;

// function to find factorial of a number

double fact(int n){

double f =1.0;

// if n=0 then return 1

if(n==0)

return 1;

for(int a=1;a<=n;++a)

       f = f *a;

// return the factorial of number

return f;

}

// driver function

int main()

{

// variable

int n;

double sum=0;

cout<<"enter n:";

// read the value of n

cin>>n;

// Calculate the sum of the series

  for (int x = 0; x <= n; x++)

  {

     sum += 1.0/fact(x);

  }

  // print the approx value of "e"

    cout<<"Approx Value of e is: "<<sum<<endl;

return 0;

}

Explanation:

Read the value of "n" from user. Declare and initialize variable "sum" to store the sum of series.Create a function to Calculate the factorial of a given number. Calculate the sum of all the term of the series 1+1/1!+1/2!.....+1/n!.This will be the approx value of "e".

Output:

enter n:12

Approx Value of e is: 2.71828

6 0
3 years ago
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