GO vs Others

Question

Director ME, stop copying answers from GO. Make your own(correct) key (if you can). 
Answers without explanation, people are paying just for this. Really??

https://docs.google.com/spreadsheets/d/1JoLyc4HiuthEHAY5moTAyr-38TygsGhynkaW4AasVho/edit#gid=0


Official GATE key : https://drive.google.com/file/d/1whFDTWVWev3NZLRwNVPHTXQG-n_9b3D6/view

NO CHANGE :)

 

Edit: After challenge, range modified for question number 25. Previously it was 34 now 34 to 35.

Comments

@Digvijay Pandey  sir

GO is always better than others

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100% accuracy is Awesome :) Arjun sir _/\_

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Did the official people out there just copy all answer keys from GateOverflow ? @Arjun Sir, @Bikram Sir, @Digvijay Pandey Sir, you are aweeeesomeee!!!

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Definitely, GATE officials didn't copy but yes prominent (:-P) coaching centers and some self-proclaimed 'God Father of CSE GATE' copied answers from GO.

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according to me @ Digvijay Pandey answer of Q36 can be option A  

https://gateoverflow.in/204110/gate2018-36

can you(any one) please give me concrete explanation even though official key also says option D.

Thanks :)

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3rd Option :  Given two grammar G1 and G2, whether L(G1) = L(G2) 

is Undecidable. Because When nothing is mentioned about the type of the Grammar, It, by default, should be taken as A Valid Grammar i.e. Type 0 Grammar which itself covers All the Grammars. 

So, Now the given problem is nothing but  "Equivalence of two RE languages" Problem.  Which is Undecidable. 

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@ Digvijay Pandey

Who is "God Father of CSE GATE" ??

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Deepakk Poonia (Dee) thanks for reply but i am still not convinced ,can you please provide any reference for it.

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Please Read my answer for this question :

https://gateoverflow.in/204110/gate2018-36?show=204903#a204903

And then let me know if doubt continues.