Answer:
No you can not tell that recursion is ever required to solve a problem.
Recursion is required when in the problem, the solution of the input depends on the solution of the subsets of the input.
Iteration is also another form of repetitive approach we follow to solve that kind of problems.
But the difference between recursion and iteration is :
- In recursion we call the function repeatedly to return the result to next level.
- In iteration certain bunch of instructions in a loop are executed until certain conditions met.
Explanation:
For example in the Fibonacci sequence problem, to find 
, we need to compute 
and 
before that.
- In case of recursion we just call the method Fibonacci(n) repeatedly only changing the parameter Fibonacci(n-1), that calculates the value and return it.
Fibonacci(n)
1. if(n==0 or n==1)
2. return 1.
3.else
4. return( Fibonacci(n-1)+Fibonacci(n-1) )
- But in case of iteration we run a loop for i=2 to n, within which we add the value of current
and 
to find the value of 
Fibonacci(n)
1. if(n<=2)
2. result = 1
3. else
4. result1 =1 and result2=1.
5. { result = result1 +result2.
6. result1= result2.
7. result2 = result.
8. }
9. output result.
<u>Answer:</u>
<em>My teachers & My parents are the main reason to get through academics well. </em>
Though the reason might be common to most of the people, <em>the situation might be unique and the way the advice's are comprehended and the process of intake and the actions would be unique to each person.</em>
How a mother gives medicine to a child along with sugar, in a similar way my <em>parents and teachers gave me advice which made me to stand at this top-level.</em>
The answer to your question is true
The resource record that allows other servers to deliver Internet mail using SMTP is called; Mail Exchanger (MX)
<h3>Use of Mail Exchanger </h3>
The correct answer to the blank part of the question is "Mail Exchanger(MX)". This is because a mail exchanger record is simply an MX record that identifies the mail server that has the responsibility of accepting email messages on behalf of a domain name.
Now this Mail Exchanger also operates by allowing other servers to deliver Internet mail with the aid of SMTP(Simple mail transfer protocol)
Read more about SMTP at; brainly.com/question/14568877
