Lecture 03 - "More examples of groups"

[@MMMtalks-nu4mc]

Outstanding sir

[@darshh.poetry2193]

woww amazing sesion

[@goravgupta9334]

Marvellous sir

[@vanamabhinaytinku6552]

Superb lecture

[@deeplaxmisingh1242]

Great session

[@ranjityadav9190]

I am very pleased with the explanation.

[@mohammadasim1861]

ohh sir thanks a lot

[@priyanshubansal6776]

is invertible matrices has properties of associative

[@MinhPham-bx9mw]

yes all valid matrix multiplication is associative

[@yashwardhandwivedi9761]

@@MinhPham-bx9mw why sir says ( after Qn example proved group) G,x called group of nth root of unity ...and all elements of G os nth root of unity when he has already said that Qn is primitive root of unity ie Qn^m not equals 1 when m

[@this.is.me.obviously]

how can theta n be the primitive nth root of unity..shouldn't it be theta n ^n ?

[@AvinashKumar-jc3ng]

@Apurva Rai No, because theta n^n =1 and 1^(1/n)=theta will give the nth roots of unity

[@yashwardhandwivedi9761]

@@AvinashKumar-jc3ng why sir says ( after Qn example proved group) G,x called group of nth root of unity ...and all elements of G os nth root of unity when he has already said that Qn is primitive root of unity ie Qn^m not equals 1 when m

[@poonamgoyal8599]

@20.10 sir 2×2 matrix and 3×3 matrix all are square matrix but we can't multiply with each other. Means that's closure property even not hold in square matrices. .. .

[@mohammadasim1861]

ohh dear it means we have to take same order of square matrix

[@UnskilledShots]

That's why he first fixed m and n

[@yashwardhandwivedi9761]

@@mohammadasim1861 why sir says ( after Qn example proved group) G,x called group of nth root of unity ...and all elements of G os nth root of unity when he has already said that Qn is primitive root of unity ie Qn^m not equals 1 when m

[@yashwardhandwivedi9761]

@@UnskilledShots why sir says ( after Qn example proved group) G,x called group of nth root of unity ...and all elements of G os nth root of unity when he has already said that Qn is primitive root of unity ie Qn^m not equals 1 when m