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Please help in solving the four set of problems, i will be very happy explaining comment as really want to understand.

The problem will spread to the extent of understanding preduduschey.

1 Problems:

The set M, M = {e^(j*2*pi*k/n) , k= 0,1,2....n-1} denotes the set of the nth roots of unity,

i.e. the solution set of z^n = 1 for fixed n.

Show that M, together with multiplication of complex numbers, forms a group.

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# 4 problems

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