Duality - Primal to Dual-Duality In LPP - Duality Solved Examples -GATE Mathematics- Part 2

Hello guys in this video of DUALITY PROBLEM I have explained you :
1) The concept of duality in very easy and simple way by taking one problem as an example to increase understanding.
2)Convert primal LP problem into its dual with an example.
1. What is Dual problem of Linear Programming Problem
2. What is Duality?
3.How to convert primal into dual problem.?
NOTE :- In this question while Changing minimization objective function to maximization objective function, I forgot to change the sign of term 5x3.so mention it here.
( max z' = -3x2 - 5x3) "
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What is Duality ?
The other problem associated with original LPP is called DUAL of LPP , while original problem is called its PRIMAL of LPP.
How to convert primal to Dual :
If the system of constraints in a given LPP consists of a mixture of inequalities, non negative variables, or unrestricted variables then the dual of the given problem can be obtained by reducing it to standard primal form by adopting the following algorithm:
1)First convert objective function to maximization form, if not.
2)If the constraint has an inequality sign greater than equal to , then multiply by both sides by -1 and make inequality sign less than equal to.
3)If a constraint of equality sign then it is replaced by two opposite sign inequalities.
4)Every unrestricted variable is replaced by the difference of two non negative variable.
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Vaishali Pant Tiwari

[@sathiyakamaliselvadurai8503]

For me .no one is here to teaching like U and once again ur teaching is lovely🥰🥰🥰🥰🥰

[@maliksahu9906]

Dual of the dual of a given primal, is the primal......is theorem ka bhi slove bata dijiye na ma'am and thank you very much ma'am 👍👌😊

[@deveshrathore3907]

mam, The links of the other topics which you have given in description are not found i request you to plz re-upload those videos which are the basics so that we can go through them since my exams are near i need to learn them . thank u for this amazing playlist for duality .

[@stevenoderayi5776]

Very good! Well explained. Thank you.

[@onlinetutorialbyvaishali]

@Steven thanks for comment please share my videos with ur classmates and friends if u want videos on any particular topics do post a comment Videos on duality : kzbin.info/www/bejne/jmWVfKB3jcxobsU Regard Videos

[@ashishtewari7747]

Thanks for the detailed explanation!

[@onlinetutorialbyvaishali]

Thanks for your comments! Please like and subscribe my channel! kzbin.info

[@mobiusloop339]

This was very helpful. Thank you! But shouldn't the objective function be -3x2 - 5x3? You wrote +5x3

[@onlinetutorialbyvaishali]

Hi Thanks for watching U r right. Just I have also noticed this the sign of 5x3 should be negative. Thanks for indicating this, will mention in the description box. Plz like, subscribe n share my channel. Regards Online tutorial by vaishali.

[@chandrimad5776]

@@onlinetutorialbyvaishali thank you! your video saved me before my exam! (one suggestion: you can hover a line in the video to show a line that - 3x1 - 5x2 would be the objective function)

[@onlinetutorialbyvaishali]

@chandrima D Hello good morning Thanks for watching and suggestion . Will surely do this. Regards Online tutorial by vaishali.

[@akanshapant1174]

well explained

[@sumadevajana411]

3:21 it shud be -5x3 rt??

[@mathworld1615]

Right !!!

[@akanshajoshi9738]

clear explanation

[@jazbatijagta6692]

Keep it up ma'am

[@onlinetutorialbyvaishali]

thanks

[@pushkar------4920]

Mam ye to minimum me bhi ho Sakta tha

[@mohamedthasneem7327]

Thank you very much...

[@onlinetutorialbyvaishali]

Hello Thanks for watching my videos.gud luck. Regards online tutorial by vaishali

[@marthaflorence8481]

Wow gracias

[@rashmijoshi1385]

Thanks a lot !

[@r.k.y484]

is equality hold in standard primal

[@onlinetutorialbyvaishali]

Hi Thanks for watching U means equality for constraints , Then no . In that case we have to convert given equality constraints in two inequality constraints , that is >= and

[@srirampunetha4646]

Thanks !

[@onlinetutorialbyvaishali]

Hello @SriRam Punetha Thanks for comment , plz subscribe my channel and share with your classmates . Link of duality in linear programming videos: kzbin.info/aero/PLdkTgdqMAkhoWS9A6TnTbIAmsVeS5aZrc Regards onlinetutorialbyvaishali