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asked | 42 views
What does $\oplus$ mean here?

I am also confused. but answer key is,

Bro, don't get the first part. How they took $\alpha_{1}, \alpha_{2}, \alpha_{3}$?
same here, and i dont know really much about permutation groups.
i think here use symbol a,b,c so in S :

first is I indicate identity element which is  alpha1 =  a     b    c

a    b     c

but i also doubt here alpha2 and alpha3  how write is???
btw Which test series is it?
It is a a question from The Gate Academy test.