Question 1171259
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Had this problem arrived with the question,  I would show you two nice short solutions, 
presented in the form  "as it  SHOULD  be".


But since you demonstrate an  EXTREMAL  form of impoliteness,  posting  the request with no question,
I will not work for you.


The posts with no question/questions ARE PROHIBITED at this forum.



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A question specially for tutors @greenestamps and @Math_tutor2020


<pre>
    Why you, people with university education, encourage/allow boorish behavior of the visitors, 

    who submit their requests omitting questions ?


    They should be taught to the rules of civilized communication BEFORE and EVEN MORE than Math.
</pre>